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Venus-Jupiter conjunction 2026. Wow! Best photos here

Venus-Jupiter conjunction: A woman pointing at 2 very bright dots in the sky. There are some purplish clouds around.
The Venus-Jupiter conjunction is one of the most spectacular astronomical events of 2026. Enjoy these photos our talented community photographers have captured so far from around the world. Vegastar Photography shared this lovely image of blazing Venus and bright Jupiter from Épernay, France, on June 1. Thank you!

Best photos of the Venus-Jupiter conjunction 2026

The two brightest planets in our sky – Venus and Jupiter – have been inching closer each day in the west after sunset for many weeks. And they’ll reach their spectacular closest conjunction this evening and tomorrow evening, June 8-9. Enjoy these photos of this beautiful event as seen from around the world.

Venus is the brightest light in these photos, followed by Jupiter. And in the more recent of these images, found toward the top of the article, you might also see planet Mercury near the horizon. Plus, many of the shots also feature Castor and Pollux – the brightest stars in Gemini the Twins – near Jupiter.

Thank you to all the talented photographers that have submitted their stunning images with us! Would you like to share your photo with us? Submit it here.

See photos of Venus and Jupiter on June 7

2 bright dots high in the dark blue sky. There are some clouds over the orange horizon.
View at EarthSky Community Photos. | Olga Patey photographed this gorgeous scene from Batumi, Black Sea coast, Georgia. Thank you!
2 bright dots in a dark blue sky. The horizon looks deep orange.
View at EarthSky Community Photos. | Marcella Tatarks captured this colorful view from Billings, Montana. Thank you!
White dots in a dark blue sky. There are 2 silhouetted trees below.
View at EarthSky Community Photos. | Ernest Jacobs took this gorgeous photo in Eden, New York. Thank you! See the stars Castor and Pollux to the top right of Venus and Jupiter? And planet Mercury is near the horizon, at the bottom right.
4 bright dots in a cloudy sky. A tree in the foreground.
View at EarthSky Community Photos. | Eileen Troberman captured this beautiful scene from Encinitas, California. Thank you!

The brightest planets on June 6

Bright dots in a slightly cloudy sky. The dots and clouds are reflected in the water below.
View at EarthSky Community Photos. | Frank Einstein photographed this wonderful scene from Bainbridge Island, Washington. Thank you!
Layer of dark sky, then clouds, then orange horizon. Four bright dots in the dark sky.
View at EarthSky Community Photos. | WDean Balmer took this photo in New Mexico. Thank you!
Dark blue sky and orange horizon over the water, with trees in the foreground. Four bright dots in the sky.
View at EarthSky Community Photos. | Pam Pedersen captured this gorgeous view from Chatham County, North Carolina. Thank you!
3 planets and 2 stars in a dark blue sky. Some clouds below.
View at EarthSky Community Photos. | Steven Bellavia took this photo from Surry, Virginia, and added labels to the planets and stars. Thank you!

Planetary duo on June 5

A person holding a lantern in one hand and pointing at the dark blue sky with the other.
View at EarthSky Community Photos. | Teresa Molinaro shared this wonderful image from Sicily, Italy. Thank you!
Bright dots in a dark sky. There are trees to the sides and a roof below.
View at EarthSky Community Photos. | Andrew Hans took this photo from East Northport, New York. Thank you!
4 bright dots in a dark blue sky, with rooftops and trees below.
View at EarthSky Community Photos. | Marlin Larson took this photo from Cookeville, Tennessee. Thank you!
Wide view of the sky with many bright dots, 2 of them stand out the most.
View at EarthSky Community Photos. | Elane Nunley captured this beautiful view from Green Mountain, North Carolina. Thank you!

Venus and Jupiter on June 4

2 bright dots and 2 fainter dots above them. All over a city illuminated at night.
View at EarthSky Community Photos. | Antoine Grims took this stunning photo from Ghajnsielem, Gozo, Malta. Thank you!
2 bright dots in a grayish sky. There are many trees and branches below.
View at EarthSky Community Photos. | Tony Kordbegli took this photo in Bensalem, Pennsylvania. Thank you!

More photos of the planets on June 3

Jupiter, Venus and Mercury form a line in the sky. Pollux and Castor are above Jupiter and Venus.
View at EarthSky Community Photos. | Beth Katz shared this image from Washington Boro, Pennsylvania. She wrote: “Finally didn’t have clouds obscuring Mercury.” Yay! Thank you!
Ornament with a waning crescent shape hanging from a roof. Venus is inside the moon shape, Jupiter is to the top left.
View at EarthSky Community Photos. | Paolo Palma captured this stunning view from Rome, Italy. Thank you!
2 dots in a gray-blue sky. The horizon looks orange. There are trees below and a tall tree to the right.
View at EarthSky Community Photos. | Sudhir Sharma took this photo in Stormville, New York. Thank you!

More images from June 2

3 bright dots in a line in a dark blue sky. Trees and rooftops below.
View at EarthSky Community Photos. | David Simmons captured this lovely view from Northwest Ohio. Thank you, David!
Dark sky with 2 very bright dots and some fainter dots around.
View at EarthSky Community Photos. | Thomas Winterer took this beautiful photo from Minnesota. Thank you!
Long, thin building with the shape of a waxing crescent moon at the top. It forms a line with 2 bright dots on either side.
View at EarthSky Community Photos. | Omer Bin Abdul Aziz took this photo from Doha, Qatar. He wrote: “A celestial alignment – combined with elements from humans. Local mosque’s crescent on minaret makes this already interesting alignment, a bit more interesting!” Wonderful! Thank you, Omar.
2 very bright dots in the sky, and 2 fainter dots above. Puffy clouds below.
View at EarthSky Community Photos. | Sharon Cochran in Cochise, Arizona, took this photo on June 2. Thank you!
Bright dots in the sky reflected in the water below. Trees on the left and soft mountains in the distance.
View at EarthSky Community Photos. | Mac Campbell captured this lovely scene from Clark Fork, Idaho. Thank you!

More photos of Venus and Jupiter

2 very bright dots and 2 fainter dots above them. All above a lighthouse.
View at EarthSky Community Photos. | Reid Piercey took this wonderful photo in June 1 from Peggy’s Cove, Nova Scotia, Canada. Thank you!
Dark sky with a orange horizon. There are 2 bright dots in the center and 2 fainter dots at top and 1 at bottom right.
View at EarthSky Community Photos. | Marianna Roca in Plum Cove Beach, Gloucester, Massachusetts, took this photo on June 1. She captured 3 planets (Jupiter at the top left, Venus in the middle and Mercury at the bottom right), and 2 stars (Castor and Pollux, creating an arc with Jupiter). Thank you, Marianna!
Dark blue sky and orange horizon reflecting on the coast below. Two bright dots stand out in the sky.
View at EarthSky Community Photos. | EarthSky’s Cristina Ortiz shared this image of Venus and Jupiter from Granada, Spain, on May 29. She wrote: “Can’t wait for the Venus-Jupiter conjunction on June 8-9!” Thank you, Cristina!

A stunning view form the Southern Hemisphere

Electric blue sky with very bright dots visible. Many trees below.
View at EarthSky Community Photos. | EarthSky’s Daniel Gaussen took this wonderful image on June 3 from New Zealand. Thank you, Daniel!

The moon passed Venus and Jupiter in May


Between May 18–20, skywatchers around the world captured a beautiful sight in the night sky as the moon appeared near Venus and later close to Jupiter. This video is a collection of images shared from different countries, showing how people across the globe experienced the same celestial event from their own perspective. Watch in the player above or on YouTube.

Bottom line: The Venus-Jupiter conjunction for 2026 is here! Enjoy these stunning photos from around the world as the sky’s brightest planets have been drawing closer.

Read more: Venus-Jupiter conjunction: Sky’s 2 brightest planets to meet

The post Venus-Jupiter conjunction 2026. Wow! Best photos here first appeared on EarthSky.



from EarthSky https://ift.tt/Op5cMWj
Venus-Jupiter conjunction: A woman pointing at 2 very bright dots in the sky. There are some purplish clouds around.
The Venus-Jupiter conjunction is one of the most spectacular astronomical events of 2026. Enjoy these photos our talented community photographers have captured so far from around the world. Vegastar Photography shared this lovely image of blazing Venus and bright Jupiter from Épernay, France, on June 1. Thank you!

Best photos of the Venus-Jupiter conjunction 2026

The two brightest planets in our sky – Venus and Jupiter – have been inching closer each day in the west after sunset for many weeks. And they’ll reach their spectacular closest conjunction this evening and tomorrow evening, June 8-9. Enjoy these photos of this beautiful event as seen from around the world.

Venus is the brightest light in these photos, followed by Jupiter. And in the more recent of these images, found toward the top of the article, you might also see planet Mercury near the horizon. Plus, many of the shots also feature Castor and Pollux – the brightest stars in Gemini the Twins – near Jupiter.

Thank you to all the talented photographers that have submitted their stunning images with us! Would you like to share your photo with us? Submit it here.

See photos of Venus and Jupiter on June 7

2 bright dots high in the dark blue sky. There are some clouds over the orange horizon.
View at EarthSky Community Photos. | Olga Patey photographed this gorgeous scene from Batumi, Black Sea coast, Georgia. Thank you!
2 bright dots in a dark blue sky. The horizon looks deep orange.
View at EarthSky Community Photos. | Marcella Tatarks captured this colorful view from Billings, Montana. Thank you!
White dots in a dark blue sky. There are 2 silhouetted trees below.
View at EarthSky Community Photos. | Ernest Jacobs took this gorgeous photo in Eden, New York. Thank you! See the stars Castor and Pollux to the top right of Venus and Jupiter? And planet Mercury is near the horizon, at the bottom right.
4 bright dots in a cloudy sky. A tree in the foreground.
View at EarthSky Community Photos. | Eileen Troberman captured this beautiful scene from Encinitas, California. Thank you!

The brightest planets on June 6

Bright dots in a slightly cloudy sky. The dots and clouds are reflected in the water below.
View at EarthSky Community Photos. | Frank Einstein photographed this wonderful scene from Bainbridge Island, Washington. Thank you!
Layer of dark sky, then clouds, then orange horizon. Four bright dots in the dark sky.
View at EarthSky Community Photos. | WDean Balmer took this photo in New Mexico. Thank you!
Dark blue sky and orange horizon over the water, with trees in the foreground. Four bright dots in the sky.
View at EarthSky Community Photos. | Pam Pedersen captured this gorgeous view from Chatham County, North Carolina. Thank you!
3 planets and 2 stars in a dark blue sky. Some clouds below.
View at EarthSky Community Photos. | Steven Bellavia took this photo from Surry, Virginia, and added labels to the planets and stars. Thank you!

Planetary duo on June 5

A person holding a lantern in one hand and pointing at the dark blue sky with the other.
View at EarthSky Community Photos. | Teresa Molinaro shared this wonderful image from Sicily, Italy. Thank you!
Bright dots in a dark sky. There are trees to the sides and a roof below.
View at EarthSky Community Photos. | Andrew Hans took this photo from East Northport, New York. Thank you!
4 bright dots in a dark blue sky, with rooftops and trees below.
View at EarthSky Community Photos. | Marlin Larson took this photo from Cookeville, Tennessee. Thank you!
Wide view of the sky with many bright dots, 2 of them stand out the most.
View at EarthSky Community Photos. | Elane Nunley captured this beautiful view from Green Mountain, North Carolina. Thank you!

Venus and Jupiter on June 4

2 bright dots and 2 fainter dots above them. All over a city illuminated at night.
View at EarthSky Community Photos. | Antoine Grims took this stunning photo from Ghajnsielem, Gozo, Malta. Thank you!
2 bright dots in a grayish sky. There are many trees and branches below.
View at EarthSky Community Photos. | Tony Kordbegli took this photo in Bensalem, Pennsylvania. Thank you!

More photos of the planets on June 3

Jupiter, Venus and Mercury form a line in the sky. Pollux and Castor are above Jupiter and Venus.
View at EarthSky Community Photos. | Beth Katz shared this image from Washington Boro, Pennsylvania. She wrote: “Finally didn’t have clouds obscuring Mercury.” Yay! Thank you!
Ornament with a waning crescent shape hanging from a roof. Venus is inside the moon shape, Jupiter is to the top left.
View at EarthSky Community Photos. | Paolo Palma captured this stunning view from Rome, Italy. Thank you!
2 dots in a gray-blue sky. The horizon looks orange. There are trees below and a tall tree to the right.
View at EarthSky Community Photos. | Sudhir Sharma took this photo in Stormville, New York. Thank you!

More images from June 2

3 bright dots in a line in a dark blue sky. Trees and rooftops below.
View at EarthSky Community Photos. | David Simmons captured this lovely view from Northwest Ohio. Thank you, David!
Dark sky with 2 very bright dots and some fainter dots around.
View at EarthSky Community Photos. | Thomas Winterer took this beautiful photo from Minnesota. Thank you!
Long, thin building with the shape of a waxing crescent moon at the top. It forms a line with 2 bright dots on either side.
View at EarthSky Community Photos. | Omer Bin Abdul Aziz took this photo from Doha, Qatar. He wrote: “A celestial alignment – combined with elements from humans. Local mosque’s crescent on minaret makes this already interesting alignment, a bit more interesting!” Wonderful! Thank you, Omar.
2 very bright dots in the sky, and 2 fainter dots above. Puffy clouds below.
View at EarthSky Community Photos. | Sharon Cochran in Cochise, Arizona, took this photo on June 2. Thank you!
Bright dots in the sky reflected in the water below. Trees on the left and soft mountains in the distance.
View at EarthSky Community Photos. | Mac Campbell captured this lovely scene from Clark Fork, Idaho. Thank you!

More photos of Venus and Jupiter

2 very bright dots and 2 fainter dots above them. All above a lighthouse.
View at EarthSky Community Photos. | Reid Piercey took this wonderful photo in June 1 from Peggy’s Cove, Nova Scotia, Canada. Thank you!
Dark sky with a orange horizon. There are 2 bright dots in the center and 2 fainter dots at top and 1 at bottom right.
View at EarthSky Community Photos. | Marianna Roca in Plum Cove Beach, Gloucester, Massachusetts, took this photo on June 1. She captured 3 planets (Jupiter at the top left, Venus in the middle and Mercury at the bottom right), and 2 stars (Castor and Pollux, creating an arc with Jupiter). Thank you, Marianna!
Dark blue sky and orange horizon reflecting on the coast below. Two bright dots stand out in the sky.
View at EarthSky Community Photos. | EarthSky’s Cristina Ortiz shared this image of Venus and Jupiter from Granada, Spain, on May 29. She wrote: “Can’t wait for the Venus-Jupiter conjunction on June 8-9!” Thank you, Cristina!

A stunning view form the Southern Hemisphere

Electric blue sky with very bright dots visible. Many trees below.
View at EarthSky Community Photos. | EarthSky’s Daniel Gaussen took this wonderful image on June 3 from New Zealand. Thank you, Daniel!

The moon passed Venus and Jupiter in May


Between May 18–20, skywatchers around the world captured a beautiful sight in the night sky as the moon appeared near Venus and later close to Jupiter. This video is a collection of images shared from different countries, showing how people across the globe experienced the same celestial event from their own perspective. Watch in the player above or on YouTube.

Bottom line: The Venus-Jupiter conjunction for 2026 is here! Enjoy these stunning photos from around the world as the sky’s brightest planets have been drawing closer.

Read more: Venus-Jupiter conjunction: Sky’s 2 brightest planets to meet

The post Venus-Jupiter conjunction 2026. Wow! Best photos here first appeared on EarthSky.



from EarthSky https://ift.tt/Op5cMWj

What is The Hum? Scientists provide an update

The Hum: A pixelated image of a blonde woman holding her hand behind her ear.
Since at least the 1970s, people around the world have reported a mysterious hum. It’s known simply as The Hum. What produces it? No one knows. But a new scientific study provides clues. Image via Idun Haugan/ Norwegian University of Science and Technology (NTNU)/ Norwegian SciTech News.
  • People have reported a mysterious humming sound around the world since the 1970s. It’s called The Hum.
  • Scientists have proposed possible explanations. But there may not be a single answer for the phenomenon.
  • The Hum might originate from human-made sources or nature. Sometimes, it might even originate within the hearers’ own ears or heads.

Science news, night sky events and beautiful photos, all in one place. Click here to subscribe to our free daily newsletter.

The Hum is weird and mysterious

Have you ever been bothered by a strange humming sound you couldn’t identify? Many people have. Scientists call it simply The Hum. It’s a low-frequency sound, sometimes felt as a vibration. People have heard it both indoors and outdoors, especially at night. An estimated 2-4% of the world’s population has heard it. That’s some 250 million people! And it’s been going on for decades, at least, with still no firm answer as to the source.

And now researchers at the University of Munich in Germany and the Norwegian University of Science and Technology in Norway have provided a scientific update on the mystery, published in the peer-reviewed journal PLOS One on March 27, 2026.

And science writer Idun Haugan has written about the phenomenon and the new study in the June 2, 2026, Norwegian SciTech News.

Haugan isn’t one of the researchers … but she’s heard The Hum herself. She said that theories about it are wide-ranging, from both human-produced and natural sources, to wilder conspiracy theories. Or even sounds produced by the human ear itself.

Feed: "Norwegian SciTech News"By: Idun Haugan on Tuesday, June 2, 2026

Longtail News (@longtail-news.bsky.social) 2026-06-03T11:03:10.180954+00:00

1st and global instances of The Hum

So when did this unusual phenomenon first begin to be reported? As noted in Haugan’s article, the first known cases were in Bristol, England, in the 1970s. At the time, the theory was that large industrial fans were to blame. They were in the warehouse of a large department store. But a few years later, the store closed … and The Hum continued.

And The Hum didn’t stay in Bristol. People later said they heard it elsewhere in the U.K., including Hythe, Plymouth, Southampton, Swansea and even London. But scientists still didn’t know what was causing it.

Since then, The Hum has been heard in many other locations. People reported it in the U.S. in the 1990s. Taos, New Mexico and Kokomo, Indiana, are the first known locations. And then it went global. The unusual sound popped up in Canada, Australia, New Zealand, South Africa and several cities in Europe, including Oslo, Norway.

Most often, people report it in densely populated areas.

The Taos Hum was called the Ultimate Hum in the 1990s. Two percent of the population could hear it, with frequencies between 32 and 80 Hertz.

The Hum World Map and Database Project

In 2012, Glen MacPherson in Canada started the The World Hum Map and Database Project. He had previously heard The Hum himself when he lived on the West Coast. But when he relocated to another city, still on the West Coast, he no longer heard it. As Haugan mentions:

He became so interested in the sound phenomenon that he started the interactive The World Hum Map and Database Project in 2012, which collects data from places and people where the sound has been noted.

Global map with many locations marked, especially in North America, Europe,  Australia and New Zealand.
View larger. | Map depicting locations of The Hum worldwide. Image via Idun Haugan/ Norwegian University of Science and Technology (NTNU)/ Norwegian SciTech News.

Various theories

Scientists have offered many theories for the phenomenon. These include both human-made and natural sounds. And of course, there are the usual conspiracy theories, too: in this case, aliens or the CIA.

Human technology can make various low-frequency sounds. Some examples are ventilation systems, heat pumps, traffic noise and windmills. Another is high-pressure gas pipelines. In nature, waves and wind can also produce these sounds.

Even the jet stream was suggested as a cause in 1973. But that was quickly dismissed as “absolute nonsense.”

But why does this particular hum seem to stand out? Why did it seemingly begin in one place and then expand to other locations. Or was it there before and just not noticed?

As noted by Haugan in her Norwegian SciTech News article, the new study began in Germany in an attempt to find answers. She wrote:

The Hum has attracted the interest of hearing and audiology researchers worldwide. Markus Drexl, an NTNU professor [working in neuromedicine and balance disorders], is among this self-selected group. He and two Ph.D. research fellows and a postdoc have conducted a study of 28 people in Germany who experience hearing an unexplained buzzing or humming.

Large sand-colored cathedral with gothic windows and a large, ornate tower at each end.
View larger. | Bristol Cathedral in Bristol, England. Bristol is where the earliest reports of The Hum came from in the 1970s. Image via Bärbel Miemietz/ Wikimedia Commons.

2 main hypotheses

For the study, the researchers tested two hypotheses. The first is that The Hum can be measured in both human-made infrastructure and in nature. These are sounds that can be measured. Markus Drexl explained:

We know that there are people who hear low-frequency sounds that can actually be measured, even if other people don’t hear them. But it’s not so easy to find the source of these sound waves, because it’s a struggle to localize low-frequency sounds.

The researchers tested the 28 study participants to see if they had exceptionally good hearing. Only two of them had better than average gearing at low frequencies. Drexl told Idun Haugan:

Even though the group we tested was small, it still means that the hypothesis of having especially good hearing for low-frequency sounds does not hold for most people.

Man sitting at a desk with a wire going from a small aluminum box to his ear.
Markus Drexl at the University of Munich is 1 of the authors of the new paper, and helped conduct the new study with 28 participants in Germany. Image via Norwegian SciTech News.

Low-frequency tinnitus?

Another possibility suggests some people might have a kind of low-frequency tinnitus. Tinnitus is an internal sound in the ear or head. It is commonly known as “ringing in the ears.” Many people experience it. But these sounds can’t be measured objectively.

So it’s possible that some people who hear The Hum might actually have a form of tinnitus. Drexl said:

Based on our results, although we haven’t ruled out cases of physical external sound sources, we suggest that subjective tinnitus in the low-frequency range is often the cause of hearing pulsations of low-frequency sound perceptions.

Coming from inside our own heads?

Our ears can hear sound. And they can also produce sound as well. The cochlea in the inner ear produces weak sounds. These sounds have different frequencies, but are typically between about 500 and 5000 Hertz. Could that be an explanation for The Hum? As Drexl noted to Haugan:

Most of us don’t hear these sounds. However, a few people can actually hear the sounds that the ear itself produces. And these sounds can be measured objectively.

One hypothesis was that the participants in our group could hear oto-acoustic emissions at low frequencies. That’s why we tested whether they had them.

But the results of the testing for that hypothesis was negative.

Closeup view of a right human ear.
The human ear. Could some hum cases originate inside the ear/head instead of outside it? Image via Genusfotografen/ Wikimedia Sverige/ Wikimedia Commons.

The human auditory system

Before we can figure out The Hum, Drexl thinks, we need to understand more about the human auditory system overall. He told Idun Haugan:

What we know about the hearing system is mainly based on how we capture and process sound with higher frequencies. We know less about how the auditory system handles and processes low-frequency sound, or infrasound.

If we want to conduct a thorough assessment of low-frequency sounds and infrasound, we first need a better understanding of how sensory systems process low-frequency sound and infrasound.

Have you ever heard this unusual hum or anything similar? Tell us in the comments below!

Bottom line: For decades, people around the world have reported hearing The Hum. What is it? A new study helps narrow down possible answers.

Source: On the potential sources of a low-frequency sound percept that only a few can perceive

Via Norweigian SciTech News

Via Wikipedia

Read more: 7 weird things space does to the human body

The post What is The Hum? Scientists provide an update first appeared on EarthSky.



from EarthSky https://ift.tt/0f1vO4Y
The Hum: A pixelated image of a blonde woman holding her hand behind her ear.
Since at least the 1970s, people around the world have reported a mysterious hum. It’s known simply as The Hum. What produces it? No one knows. But a new scientific study provides clues. Image via Idun Haugan/ Norwegian University of Science and Technology (NTNU)/ Norwegian SciTech News.
  • People have reported a mysterious humming sound around the world since the 1970s. It’s called The Hum.
  • Scientists have proposed possible explanations. But there may not be a single answer for the phenomenon.
  • The Hum might originate from human-made sources or nature. Sometimes, it might even originate within the hearers’ own ears or heads.

Science news, night sky events and beautiful photos, all in one place. Click here to subscribe to our free daily newsletter.

The Hum is weird and mysterious

Have you ever been bothered by a strange humming sound you couldn’t identify? Many people have. Scientists call it simply The Hum. It’s a low-frequency sound, sometimes felt as a vibration. People have heard it both indoors and outdoors, especially at night. An estimated 2-4% of the world’s population has heard it. That’s some 250 million people! And it’s been going on for decades, at least, with still no firm answer as to the source.

And now researchers at the University of Munich in Germany and the Norwegian University of Science and Technology in Norway have provided a scientific update on the mystery, published in the peer-reviewed journal PLOS One on March 27, 2026.

And science writer Idun Haugan has written about the phenomenon and the new study in the June 2, 2026, Norwegian SciTech News.

Haugan isn’t one of the researchers … but she’s heard The Hum herself. She said that theories about it are wide-ranging, from both human-produced and natural sources, to wilder conspiracy theories. Or even sounds produced by the human ear itself.

Feed: "Norwegian SciTech News"By: Idun Haugan on Tuesday, June 2, 2026

Longtail News (@longtail-news.bsky.social) 2026-06-03T11:03:10.180954+00:00

1st and global instances of The Hum

So when did this unusual phenomenon first begin to be reported? As noted in Haugan’s article, the first known cases were in Bristol, England, in the 1970s. At the time, the theory was that large industrial fans were to blame. They were in the warehouse of a large department store. But a few years later, the store closed … and The Hum continued.

And The Hum didn’t stay in Bristol. People later said they heard it elsewhere in the U.K., including Hythe, Plymouth, Southampton, Swansea and even London. But scientists still didn’t know what was causing it.

Since then, The Hum has been heard in many other locations. People reported it in the U.S. in the 1990s. Taos, New Mexico and Kokomo, Indiana, are the first known locations. And then it went global. The unusual sound popped up in Canada, Australia, New Zealand, South Africa and several cities in Europe, including Oslo, Norway.

Most often, people report it in densely populated areas.

The Taos Hum was called the Ultimate Hum in the 1990s. Two percent of the population could hear it, with frequencies between 32 and 80 Hertz.

The Hum World Map and Database Project

In 2012, Glen MacPherson in Canada started the The World Hum Map and Database Project. He had previously heard The Hum himself when he lived on the West Coast. But when he relocated to another city, still on the West Coast, he no longer heard it. As Haugan mentions:

He became so interested in the sound phenomenon that he started the interactive The World Hum Map and Database Project in 2012, which collects data from places and people where the sound has been noted.

Global map with many locations marked, especially in North America, Europe,  Australia and New Zealand.
View larger. | Map depicting locations of The Hum worldwide. Image via Idun Haugan/ Norwegian University of Science and Technology (NTNU)/ Norwegian SciTech News.

Various theories

Scientists have offered many theories for the phenomenon. These include both human-made and natural sounds. And of course, there are the usual conspiracy theories, too: in this case, aliens or the CIA.

Human technology can make various low-frequency sounds. Some examples are ventilation systems, heat pumps, traffic noise and windmills. Another is high-pressure gas pipelines. In nature, waves and wind can also produce these sounds.

Even the jet stream was suggested as a cause in 1973. But that was quickly dismissed as “absolute nonsense.”

But why does this particular hum seem to stand out? Why did it seemingly begin in one place and then expand to other locations. Or was it there before and just not noticed?

As noted by Haugan in her Norwegian SciTech News article, the new study began in Germany in an attempt to find answers. She wrote:

The Hum has attracted the interest of hearing and audiology researchers worldwide. Markus Drexl, an NTNU professor [working in neuromedicine and balance disorders], is among this self-selected group. He and two Ph.D. research fellows and a postdoc have conducted a study of 28 people in Germany who experience hearing an unexplained buzzing or humming.

Large sand-colored cathedral with gothic windows and a large, ornate tower at each end.
View larger. | Bristol Cathedral in Bristol, England. Bristol is where the earliest reports of The Hum came from in the 1970s. Image via Bärbel Miemietz/ Wikimedia Commons.

2 main hypotheses

For the study, the researchers tested two hypotheses. The first is that The Hum can be measured in both human-made infrastructure and in nature. These are sounds that can be measured. Markus Drexl explained:

We know that there are people who hear low-frequency sounds that can actually be measured, even if other people don’t hear them. But it’s not so easy to find the source of these sound waves, because it’s a struggle to localize low-frequency sounds.

The researchers tested the 28 study participants to see if they had exceptionally good hearing. Only two of them had better than average gearing at low frequencies. Drexl told Idun Haugan:

Even though the group we tested was small, it still means that the hypothesis of having especially good hearing for low-frequency sounds does not hold for most people.

Man sitting at a desk with a wire going from a small aluminum box to his ear.
Markus Drexl at the University of Munich is 1 of the authors of the new paper, and helped conduct the new study with 28 participants in Germany. Image via Norwegian SciTech News.

Low-frequency tinnitus?

Another possibility suggests some people might have a kind of low-frequency tinnitus. Tinnitus is an internal sound in the ear or head. It is commonly known as “ringing in the ears.” Many people experience it. But these sounds can’t be measured objectively.

So it’s possible that some people who hear The Hum might actually have a form of tinnitus. Drexl said:

Based on our results, although we haven’t ruled out cases of physical external sound sources, we suggest that subjective tinnitus in the low-frequency range is often the cause of hearing pulsations of low-frequency sound perceptions.

Coming from inside our own heads?

Our ears can hear sound. And they can also produce sound as well. The cochlea in the inner ear produces weak sounds. These sounds have different frequencies, but are typically between about 500 and 5000 Hertz. Could that be an explanation for The Hum? As Drexl noted to Haugan:

Most of us don’t hear these sounds. However, a few people can actually hear the sounds that the ear itself produces. And these sounds can be measured objectively.

One hypothesis was that the participants in our group could hear oto-acoustic emissions at low frequencies. That’s why we tested whether they had them.

But the results of the testing for that hypothesis was negative.

Closeup view of a right human ear.
The human ear. Could some hum cases originate inside the ear/head instead of outside it? Image via Genusfotografen/ Wikimedia Sverige/ Wikimedia Commons.

The human auditory system

Before we can figure out The Hum, Drexl thinks, we need to understand more about the human auditory system overall. He told Idun Haugan:

What we know about the hearing system is mainly based on how we capture and process sound with higher frequencies. We know less about how the auditory system handles and processes low-frequency sound, or infrasound.

If we want to conduct a thorough assessment of low-frequency sounds and infrasound, we first need a better understanding of how sensory systems process low-frequency sound and infrasound.

Have you ever heard this unusual hum or anything similar? Tell us in the comments below!

Bottom line: For decades, people around the world have reported hearing The Hum. What is it? A new study helps narrow down possible answers.

Source: On the potential sources of a low-frequency sound percept that only a few can perceive

Via Norweigian SciTech News

Via Wikipedia

Read more: 7 weird things space does to the human body

The post What is The Hum? Scientists provide an update first appeared on EarthSky.



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Best deep-sky photos of May 2026 from the EarthSky community

Deep-sky photos: A yellowish galaxy with blue spirals seen head-on, surrounded by sparse bright stars.
View at EarthSky Community Photos. | Steven Bellavia in Smithfield, Virginia, captured this telescopic view of galaxy Messier 83 on May 11, 2026. Steven wrote: “Even down here in southern Virginia, M83, the Southern Pinwheel Galaxy, only reaches an altitude of 22 degrees. So this is a challenging object to capture. M83, also called the Southern Pinwheel Galaxy, is a barred spiral galaxy in the constellation borders of Hydra and Centaurus. Nicolas-Louis de Lacaille discovered it on February 17, 1752, at the Cape of Good Hope. Charles Messier added it to his catalog in March 1781. At 15 million light-years away, it is one of the closest and brightest barred spiral galaxies in the sky, visible even with binoculars.” Thank you, Steven! See more deep-sky photos from May 2026 below.

You deserve a daily dose of good news. For the latest in science and the night sky, click here to subscribe to our free daily newsletter.

Thank you, EarthSky community

The EarthSky community has many talented astrophotographers who capture stunning images of the deep sky. We gathered some of our favorite deep-sky photos from May 2026 for you to enjoy. Do you have images of your own to share? You can submit them to EarthSky here. We’d love to see them and share them!

Deep-sky photos of diffuse nebulae

A large, orange cloud with the shape of North America, cntaining numerous immersed faint stars.
View at EarthSky Community Photos. | Vikash Singh in Dhannad, Jharkhand, India, captured this telescopic view of the North America Nebula on May 8, 2026. Vikash wrote: “NGC 7000, also known as the North America Nebula, from my city Dhanbad using my Dwarf 3 Smart Telescope. Located in the constellation Cygnus near the bright star Deneb, this emission nebula lies around 1,500-2,200 light-years away from Earth and stretches nearly 50 light-years across space.” Thank you, Vikash!
A large, spherical and hollowed-out cloud of electric blue and red gas, with numerous immersed stars.
View at EarthSky Community Photos. | Jacky Brown in Aurora, Colorado, captured this telescopic view of the Rosette Nebula with its associated star cluster, in the constellation Monoceros, on May 10, 2026. Jacky wrote: “I was actually watching Betelgeuse and got sidetracked to this star cluster. Beautiful object, as always.” Thank you, Jacky!

Planetary nebulae

A large sphere of electric green gas resembling the face of an owl, surrounded by sparse stars.
View at EarthSky Community Photos. | Jelieta Walinski at Desert Bloom Observatory in St. David, Arizona, captured this telescopic view of Messier 97, the Owl Nebula in the constellation Ursa Major, on May 15, 2026. Jelieta wrote: “The Owl Nebula, located in the constellation Ursa Major approximately 2,000 light-years from Earth, is a planetary nebula formed from the outer layers of a dying sunlike star. Its distinctive ‘owl-eyed’ appearance emerges from complex shells of glowing gas illuminated by the hot remnant stellar core. This image represents both the beauty and the challenge of modern backyard astrophotography, where even under intrusive artificial light, faint deep-sky objects can still be revealed through patience, precision tracking, and long exposure imaging.” Thank you, Jelieta!
Small, ring-shaped cloud of gas in blue and orange, with sparse background stars.
View at EarthSky Community Photos. | Jelieta Walinski at Desert Bloom Observatory in St. David, Arizona, captured this telescopic view of Messier 57, the Ring Nebula, in the constellation Lyra, on May 16, 2026. Jelieta wrote: “Captured from Desert Bloom Observatory under intermittent monsoon skies in the Arizona desert, this image reveals the luminous beauty of the Ring Nebula (Messier 57), the glowing remains of a dying star approximately 2,300 light-years from Earth. Its delicate emerald core and expanding outer shell shine like a celestial smoke ring suspended in the darkness of space.” Thank you, Jelieta!

Star clusters

A large, spherical cluster containing thousands of bright white stars, located in a prolific star field.
View at EarthSky Community Photos. | Giuseppe Pappa from Sicily, Italy, used a remote telescope in Namibia to capture this view of globular cluster NGC 5139, Omega Centauri, on May 13, 2026. Giuseppe wrote: “May offers the optimal annual window for latitudes around 38-32 degrees north latitude. In this case I took the images from Namibia (remote control). Wide-field capture of the Milky Way’s most massive globular cluster. The flat field of the AG70 astrograph delivers pinpoint stellar profiles across the entire frame, mapping the steep radial density gradient from the structural outskirts to the unresolved core. Due to its multiple stellar populations with distinct chemical profiles and ages, NGC 5139 is classified as a stripped galactic nucleus: the fossil remnant of a dwarf galaxy accreted by the Milky Way.” Thank you, Giuseppe!

Deep-sky photos of distant galaxies

A yellowish spiral galaxy seen head-on, marked with a circle and surrounded by sparse bright stars.
View at EarthSky Community Photos. | Tameem Altameemi in the United Arab Emirates (UAE) captured this telescopic view of Messier 51, the Whirlpool galaxy, on May 9, 2026. Tameem wrote: “Located about 23.5 million light-years away in the constellation Canes Venatici, M51 is one of the most famous interacting spiral galaxies in the night sky. Its striking spiral structure is believed to be enhanced by the gravitational interaction with its companion galaxy NGC 5195, visible beside it. Several distant background galaxies also appear throughout the frame, including IC 4277 and IC 4278, adding depth to this cosmic scene.” Thank you, Tameem!
Two large, yellowish clouds, one irregular and another spiral, with numerous bright foreground stars.
View at EarthSky Community Photos. | Mohammed Abdallah in Suez, Egypt, used a telephoto lens to capture this view of galaxies Messier 81 and Messier 82 on May 6, 2026. Mohammed wrote: “M81 and M82 are interacting galaxies located in Ursa Major, and they are about 12 million light-years away. It’s impressive to think about how many million stars are in front of your eyes.” Thank you, Mohammed!
A prolific star field containing a dozen reddish and fuzzy galaxies.
View at EarthSky Community Photos. | Tameem Altameemi in Al Qou’, United Arab Emirates (UAE), captured this telescopic view of Markarian’s Chain of galaxies on May 23, 2026. Tameem wrote: “Markarian’s Chain is a famous curved alignment of galaxies located within the Virgo Cluster, one of the nearest large galaxy clusters to Earth. The chain was named after the Armenian astrophysicist Benjamin Markarian, who noticed that many of these galaxies appear visually connected in a smooth arc across the sky. This region contains a remarkable variety of galaxies, including giant elliptical galaxies, spiral galaxies seen edge-on, and interacting systems shaped by gravitational encounters over millions of years.” Thank you, Tameem!
A large star field containing numerous faint and fuzzy galaxies, each marked with a small square.
View at EarthSky Community Photos. | Steven Bellavia in Smithfield, Virginia, captured this telescopic view of Markarian’s Chain of galaxies on May 30, 2026. Steven wrote: “The Markarian chain of galaxies and even more field beyond them. The finder chart and poster are courtesy of a free script for PixInsight, developed by Daniel Nimmervoll of Germany. Note that well over 500 galaxies are revealed in this image. I chose to stop at 246.” Thank you, Steven!

Bottom line: Without a doubt, you’ll enjoy this gallery of deep-sky photos from May 2026 by our EarthSky community. If you have a great photo to share, send it in, too. We love to see them!

Share your recent Earth or sky photo at EarthSky Community Photos.

Read more: Messier objects are fuzzy patches in the night sky

The post Best deep-sky photos of May 2026 from the EarthSky community first appeared on EarthSky.



from EarthSky https://ift.tt/2QNYa5C
Deep-sky photos: A yellowish galaxy with blue spirals seen head-on, surrounded by sparse bright stars.
View at EarthSky Community Photos. | Steven Bellavia in Smithfield, Virginia, captured this telescopic view of galaxy Messier 83 on May 11, 2026. Steven wrote: “Even down here in southern Virginia, M83, the Southern Pinwheel Galaxy, only reaches an altitude of 22 degrees. So this is a challenging object to capture. M83, also called the Southern Pinwheel Galaxy, is a barred spiral galaxy in the constellation borders of Hydra and Centaurus. Nicolas-Louis de Lacaille discovered it on February 17, 1752, at the Cape of Good Hope. Charles Messier added it to his catalog in March 1781. At 15 million light-years away, it is one of the closest and brightest barred spiral galaxies in the sky, visible even with binoculars.” Thank you, Steven! See more deep-sky photos from May 2026 below.

You deserve a daily dose of good news. For the latest in science and the night sky, click here to subscribe to our free daily newsletter.

Thank you, EarthSky community

The EarthSky community has many talented astrophotographers who capture stunning images of the deep sky. We gathered some of our favorite deep-sky photos from May 2026 for you to enjoy. Do you have images of your own to share? You can submit them to EarthSky here. We’d love to see them and share them!

Deep-sky photos of diffuse nebulae

A large, orange cloud with the shape of North America, cntaining numerous immersed faint stars.
View at EarthSky Community Photos. | Vikash Singh in Dhannad, Jharkhand, India, captured this telescopic view of the North America Nebula on May 8, 2026. Vikash wrote: “NGC 7000, also known as the North America Nebula, from my city Dhanbad using my Dwarf 3 Smart Telescope. Located in the constellation Cygnus near the bright star Deneb, this emission nebula lies around 1,500-2,200 light-years away from Earth and stretches nearly 50 light-years across space.” Thank you, Vikash!
A large, spherical and hollowed-out cloud of electric blue and red gas, with numerous immersed stars.
View at EarthSky Community Photos. | Jacky Brown in Aurora, Colorado, captured this telescopic view of the Rosette Nebula with its associated star cluster, in the constellation Monoceros, on May 10, 2026. Jacky wrote: “I was actually watching Betelgeuse and got sidetracked to this star cluster. Beautiful object, as always.” Thank you, Jacky!

Planetary nebulae

A large sphere of electric green gas resembling the face of an owl, surrounded by sparse stars.
View at EarthSky Community Photos. | Jelieta Walinski at Desert Bloom Observatory in St. David, Arizona, captured this telescopic view of Messier 97, the Owl Nebula in the constellation Ursa Major, on May 15, 2026. Jelieta wrote: “The Owl Nebula, located in the constellation Ursa Major approximately 2,000 light-years from Earth, is a planetary nebula formed from the outer layers of a dying sunlike star. Its distinctive ‘owl-eyed’ appearance emerges from complex shells of glowing gas illuminated by the hot remnant stellar core. This image represents both the beauty and the challenge of modern backyard astrophotography, where even under intrusive artificial light, faint deep-sky objects can still be revealed through patience, precision tracking, and long exposure imaging.” Thank you, Jelieta!
Small, ring-shaped cloud of gas in blue and orange, with sparse background stars.
View at EarthSky Community Photos. | Jelieta Walinski at Desert Bloom Observatory in St. David, Arizona, captured this telescopic view of Messier 57, the Ring Nebula, in the constellation Lyra, on May 16, 2026. Jelieta wrote: “Captured from Desert Bloom Observatory under intermittent monsoon skies in the Arizona desert, this image reveals the luminous beauty of the Ring Nebula (Messier 57), the glowing remains of a dying star approximately 2,300 light-years from Earth. Its delicate emerald core and expanding outer shell shine like a celestial smoke ring suspended in the darkness of space.” Thank you, Jelieta!

Star clusters

A large, spherical cluster containing thousands of bright white stars, located in a prolific star field.
View at EarthSky Community Photos. | Giuseppe Pappa from Sicily, Italy, used a remote telescope in Namibia to capture this view of globular cluster NGC 5139, Omega Centauri, on May 13, 2026. Giuseppe wrote: “May offers the optimal annual window for latitudes around 38-32 degrees north latitude. In this case I took the images from Namibia (remote control). Wide-field capture of the Milky Way’s most massive globular cluster. The flat field of the AG70 astrograph delivers pinpoint stellar profiles across the entire frame, mapping the steep radial density gradient from the structural outskirts to the unresolved core. Due to its multiple stellar populations with distinct chemical profiles and ages, NGC 5139 is classified as a stripped galactic nucleus: the fossil remnant of a dwarf galaxy accreted by the Milky Way.” Thank you, Giuseppe!

Deep-sky photos of distant galaxies

A yellowish spiral galaxy seen head-on, marked with a circle and surrounded by sparse bright stars.
View at EarthSky Community Photos. | Tameem Altameemi in the United Arab Emirates (UAE) captured this telescopic view of Messier 51, the Whirlpool galaxy, on May 9, 2026. Tameem wrote: “Located about 23.5 million light-years away in the constellation Canes Venatici, M51 is one of the most famous interacting spiral galaxies in the night sky. Its striking spiral structure is believed to be enhanced by the gravitational interaction with its companion galaxy NGC 5195, visible beside it. Several distant background galaxies also appear throughout the frame, including IC 4277 and IC 4278, adding depth to this cosmic scene.” Thank you, Tameem!
Two large, yellowish clouds, one irregular and another spiral, with numerous bright foreground stars.
View at EarthSky Community Photos. | Mohammed Abdallah in Suez, Egypt, used a telephoto lens to capture this view of galaxies Messier 81 and Messier 82 on May 6, 2026. Mohammed wrote: “M81 and M82 are interacting galaxies located in Ursa Major, and they are about 12 million light-years away. It’s impressive to think about how many million stars are in front of your eyes.” Thank you, Mohammed!
A prolific star field containing a dozen reddish and fuzzy galaxies.
View at EarthSky Community Photos. | Tameem Altameemi in Al Qou’, United Arab Emirates (UAE), captured this telescopic view of Markarian’s Chain of galaxies on May 23, 2026. Tameem wrote: “Markarian’s Chain is a famous curved alignment of galaxies located within the Virgo Cluster, one of the nearest large galaxy clusters to Earth. The chain was named after the Armenian astrophysicist Benjamin Markarian, who noticed that many of these galaxies appear visually connected in a smooth arc across the sky. This region contains a remarkable variety of galaxies, including giant elliptical galaxies, spiral galaxies seen edge-on, and interacting systems shaped by gravitational encounters over millions of years.” Thank you, Tameem!
A large star field containing numerous faint and fuzzy galaxies, each marked with a small square.
View at EarthSky Community Photos. | Steven Bellavia in Smithfield, Virginia, captured this telescopic view of Markarian’s Chain of galaxies on May 30, 2026. Steven wrote: “The Markarian chain of galaxies and even more field beyond them. The finder chart and poster are courtesy of a free script for PixInsight, developed by Daniel Nimmervoll of Germany. Note that well over 500 galaxies are revealed in this image. I chose to stop at 246.” Thank you, Steven!

Bottom line: Without a doubt, you’ll enjoy this gallery of deep-sky photos from May 2026 by our EarthSky community. If you have a great photo to share, send it in, too. We love to see them!

Share your recent Earth or sky photo at EarthSky Community Photos.

Read more: Messier objects are fuzzy patches in the night sky

The post Best deep-sky photos of May 2026 from the EarthSky community first appeared on EarthSky.



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NASA’s Perpetual Ocean 2 video will mesmerize you


Watch NASA’s perpetual ocean video here.

  • NASA has created a second perpetual ocean video, building on the incredibly popular original video from 2011.
  • The new video traces some of the strongest currents, showing surface ocean currents in white and deeper ocean currents in dark blue.
  • The video helps scientists understand the characteristics of these currents better and ultimately understand how heat is transported globally in the ocean.

NASA published this original article on February 27, 2025. Edits by EarthSky.

See the perpetual ocean video

This is a visualization of ocean currents around the world. Scientists use NASA’s ocean model, Estimating the Circulation and Climate of the Ocean (ECCO), to visualize the currents. The ECCO ocean circulation model incorporates observations from spacecraft, buoys and other in situ measurements to keep the model accurate. ECCO is a joint project between NASA/ JPL and MIT. The model output used here is from ECCO-2 and covers the years 2021-2023.

In 2011, ECCO2 was used to create a visualization called Perpetual Ocean. Perpetual Ocean continues to be extremely popular, but it only shows ocean currents on the surface.

In this new visualization, we use the ocean’s 3D velocity field to visualize some of the strongest ocean currents. We release virtual particles in the ocean and allow them to move with the ocean’s 3D velocity field. Each particle has a trail so we can see its direction of movement better. The particles initialized above 600 meters (1,970 feet) in depth have a trail length of three days, those initialized deeper than 600 meters have a trail length of six days. The particle trails help identify the strongest currents in the world that are squeezed in narrow belts on the western side of each ocean basin. These are called western boundary currents.

The looping meanders in the boundary currents sometimes form turbulent rings (eddies) that can trap cold or warm waters in their centers and then separate from the main flow. In general, the western boundary currents are warm and salty.

Read more: Celebrate World Oceans Day today, June 8, 2026

A closer look off the coast of Japan

The visualization starts from a global rotating view. Then, it slows down to see the Western Boundary Current along the western edge of the Pacific Ocean along the coasts of Australia and Asia. We zoom in to show the Kuroshio Current off the coast of Japan. Along the Japanese coast, the current exhibits large meanders that can persist for many months in more or less the same location. The Kuroshio Current has a temperature range of 20 to 25 degrees Celsius (68 to 77 F). Its salinity can change seasonally with an average value of 34.5.

Zeroing in on the Indian Ocean and the southern tip of Africa

We then zoom out and move over the Indian Ocean. The Indian Ocean exhibits large variations in salinity. The western Indian Ocean is quite salty (>36) due to overflow inputs from seas such as the Persian Gulf and the Red Sea. The East Indian Ocean is fresher (~35) due to river inputs from India. The Indonesian Throughflow is quite fresh (33-34) and carries freshwater from the Pacific.

We then zoom into the southern tip of Africa. The exchange of water from the Indian Ocean to the South Atlantic occurs here. The Agulhas Current is another Western Boundary current following the slope of the continental shelf closely. The continental shelf along the east coast of southern Africa is quite narrow and steep. This sloping topography stabilizes the Agulhas Current so that it shows no wide meanderings of the type familiar in other boundary currents such as the Kuroshio.

The Agulhas Current overshoots the African continent, moving into the South Atlantic. It then retroflects back to the Indian Ocean. At the retroflection, shedding of warm (20 to 25 degrees C or 68 to 77 F) and salty (~35.5) rings happens. The eddies detached from the current have a lifetime of more than two years traveling across the South Atlantic Ocean. These eddies are what we call the Agulhas Rings.

Zooming in toward southern Africa with chains of many white swirls in the ocean.
This clip from NASA’s perpetual ocean video focuses on the southern tip of Africa. Those white eddies are the Agulhas Rings. Image via NASA.

The perpetual ocean video aims for North America

Another Western Boundary Current, called the Gulf Stream, comes into view along the east coast of North America. The Gulf Stream forms at the Florida Straits. It’s one of the fastest currents on Earth with surface speed of up to 2.5 meters per second (5.6 mph).

In the Gulf Stream, cold cores (mostly nticyclonic ones) form when the Gulf Stream meanders eastward, leaving the coast of North Ameraica (off Cape Hatteras in North Carolina). The eddy can be as large as 1,000 km (600 miles) across. Zooming into the Gulf Stream, we can see that the warm surface water (>25 degrees C or 77 F) moves poleward (white particle trails). The Gulf Stream is generally the warmest and saltiest western boundary current. There’s a return current (blue particle trails) underneath at a depth below 500 meters (1,640 feet) moving southward carrying cold waters from the pole.

The loop currents in the Gulf of Mexico are very large eddies persisting in the Gulf. They bring the warm and highly saline Caribbean water into the Gulf. As we zoom out from the Gulf Stream, the salinity version shows that the Atlantic is generally much saltier than the Pacific.

Models like ECCO-2 help scientists to understand the characteristics of these currents better and ultimately understand how heat is transported globally in the ocean.

Bottom line: Watch a mesmerizing perpetual ocean video that shows the movements of the currents and eddies that churn off the eastern coasts of the continents.

Via NASA

The post NASA’s Perpetual Ocean 2 video will mesmerize you first appeared on EarthSky.



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Watch NASA’s perpetual ocean video here.

  • NASA has created a second perpetual ocean video, building on the incredibly popular original video from 2011.
  • The new video traces some of the strongest currents, showing surface ocean currents in white and deeper ocean currents in dark blue.
  • The video helps scientists understand the characteristics of these currents better and ultimately understand how heat is transported globally in the ocean.

NASA published this original article on February 27, 2025. Edits by EarthSky.

See the perpetual ocean video

This is a visualization of ocean currents around the world. Scientists use NASA’s ocean model, Estimating the Circulation and Climate of the Ocean (ECCO), to visualize the currents. The ECCO ocean circulation model incorporates observations from spacecraft, buoys and other in situ measurements to keep the model accurate. ECCO is a joint project between NASA/ JPL and MIT. The model output used here is from ECCO-2 and covers the years 2021-2023.

In 2011, ECCO2 was used to create a visualization called Perpetual Ocean. Perpetual Ocean continues to be extremely popular, but it only shows ocean currents on the surface.

In this new visualization, we use the ocean’s 3D velocity field to visualize some of the strongest ocean currents. We release virtual particles in the ocean and allow them to move with the ocean’s 3D velocity field. Each particle has a trail so we can see its direction of movement better. The particles initialized above 600 meters (1,970 feet) in depth have a trail length of three days, those initialized deeper than 600 meters have a trail length of six days. The particle trails help identify the strongest currents in the world that are squeezed in narrow belts on the western side of each ocean basin. These are called western boundary currents.

The looping meanders in the boundary currents sometimes form turbulent rings (eddies) that can trap cold or warm waters in their centers and then separate from the main flow. In general, the western boundary currents are warm and salty.

Read more: Celebrate World Oceans Day today, June 8, 2026

A closer look off the coast of Japan

The visualization starts from a global rotating view. Then, it slows down to see the Western Boundary Current along the western edge of the Pacific Ocean along the coasts of Australia and Asia. We zoom in to show the Kuroshio Current off the coast of Japan. Along the Japanese coast, the current exhibits large meanders that can persist for many months in more or less the same location. The Kuroshio Current has a temperature range of 20 to 25 degrees Celsius (68 to 77 F). Its salinity can change seasonally with an average value of 34.5.

Zeroing in on the Indian Ocean and the southern tip of Africa

We then zoom out and move over the Indian Ocean. The Indian Ocean exhibits large variations in salinity. The western Indian Ocean is quite salty (>36) due to overflow inputs from seas such as the Persian Gulf and the Red Sea. The East Indian Ocean is fresher (~35) due to river inputs from India. The Indonesian Throughflow is quite fresh (33-34) and carries freshwater from the Pacific.

We then zoom into the southern tip of Africa. The exchange of water from the Indian Ocean to the South Atlantic occurs here. The Agulhas Current is another Western Boundary current following the slope of the continental shelf closely. The continental shelf along the east coast of southern Africa is quite narrow and steep. This sloping topography stabilizes the Agulhas Current so that it shows no wide meanderings of the type familiar in other boundary currents such as the Kuroshio.

The Agulhas Current overshoots the African continent, moving into the South Atlantic. It then retroflects back to the Indian Ocean. At the retroflection, shedding of warm (20 to 25 degrees C or 68 to 77 F) and salty (~35.5) rings happens. The eddies detached from the current have a lifetime of more than two years traveling across the South Atlantic Ocean. These eddies are what we call the Agulhas Rings.

Zooming in toward southern Africa with chains of many white swirls in the ocean.
This clip from NASA’s perpetual ocean video focuses on the southern tip of Africa. Those white eddies are the Agulhas Rings. Image via NASA.

The perpetual ocean video aims for North America

Another Western Boundary Current, called the Gulf Stream, comes into view along the east coast of North America. The Gulf Stream forms at the Florida Straits. It’s one of the fastest currents on Earth with surface speed of up to 2.5 meters per second (5.6 mph).

In the Gulf Stream, cold cores (mostly nticyclonic ones) form when the Gulf Stream meanders eastward, leaving the coast of North Ameraica (off Cape Hatteras in North Carolina). The eddy can be as large as 1,000 km (600 miles) across. Zooming into the Gulf Stream, we can see that the warm surface water (>25 degrees C or 77 F) moves poleward (white particle trails). The Gulf Stream is generally the warmest and saltiest western boundary current. There’s a return current (blue particle trails) underneath at a depth below 500 meters (1,640 feet) moving southward carrying cold waters from the pole.

The loop currents in the Gulf of Mexico are very large eddies persisting in the Gulf. They bring the warm and highly saline Caribbean water into the Gulf. As we zoom out from the Gulf Stream, the salinity version shows that the Atlantic is generally much saltier than the Pacific.

Models like ECCO-2 help scientists to understand the characteristics of these currents better and ultimately understand how heat is transported globally in the ocean.

Bottom line: Watch a mesmerizing perpetual ocean video that shows the movements of the currents and eddies that churn off the eastern coasts of the continents.

Via NASA

The post NASA’s Perpetual Ocean 2 video will mesmerize you first appeared on EarthSky.



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Our galactic neighbor is slowly coming apart

Galactic neighbor: Image of a patch of stars with arrows in rainbow colors moving outward.
The Small Magellanic Cloud is our galactic neighbor. It’s a satellite galaxy that orbits our Milky Way galaxy. Scientists long assumed it was rotating like other galaxies, but new observations show its stars are expanding outward instead. The arrows show the motion of stars away from the center of the galaxy, and the colors indicate the velocities of the stars. Image via ESO/ VISTA VMC/ AIP/ S. Vijayasree.
  • The Small and Large Magellanic Clouds are dwarf satellite galaxies of our Milky Way galaxy.
  • Scientists had thought the Small Magellanic Cloud was rotating, but a new study has found that its stars are racing outwards.
  • It seems it’s being ripped apart by the gravity of its neighbor, the Large Magellanic Cloud.

You deserve a daily dose of good news. For the latest in science and the night sky, subscribe to EarthSky’s free daily newsletter.

Our galactic neighbor is slowly coming apart

The Small and Large Magellanic Clouds are dwarf satellite galaxies orbiting our Milky Way galaxy. Visible with the unaided eye from the Southern Hemisphere, these galaxies appear serene neighbors in southern skies. But on June 2, 2026, scientists from the Leibniz Institute for Astrophysics Potsdam in Germany said that the gravitational pull from the Large Magellanic Cloud is actually ripping the Small Magellanic Cloud apart.

Scientists looked at more than 10 years of observations from the VISTA Survey of the Magellanic Clouds. This allowed them to measure the motions of millions of stars inside the Small Magellanic Cloud. These movements showed the dwarf galaxy was not rotating as once thought. Instead, the galaxy’s stars are racing away from the center. Even the inner stars appear to be heading toward the exit.

Lead author Sreepriya Vijayasree of AIP said:

The results reveal large-scale tidal expansion throughout the Small Magellanic Cloud galaxy and challenge long-standing assumptions that the Small Magellanic Cloud behaves like a rotating disk. The study shows that the internal motions of stars in the Small Magellanic Cloud are dominated not by orderly rotation, but by gravitational disturbances caused by repeated encounters with the Large Magellanic Cloud over billions of years.

The researchers submitted their study in the Letters to the Editor section of the journal Astronomy & Astrophysics. The journal accepted it for publication on May 21, 2026.

More on the Large and Small Magellanic Clouds

The Large Magellanic Cloud is one of the closest galaxies to us at about 160,000 light-years away. Meanwhile, the Small Magellanic Cloud is a bit farther at about 200,000 light-years away. As some of the closest galaxies to our home galaxy, they stand out as big, misty blobs of light under dark skies.

Scientists estimate the Small Magellanic Cloud contains around 3 billion stars, while the Large Magellanic Cloud houses some 30 billion stars. The Large Magellanic Cloud is in the constellations of Dorado and Mensa. And Tucana the Toucan is home to the Small Magellanic Cloud.

Whitish-blue fuzzy oval in upper right and smaller fuzzy oval of light at lower left in starfield.
These are the Large (upper right) and Small (lower left) Magellanic Clouds. They look like smudges on a dark night sky, visible from Earth’s Southern Hemisphere. They’re classified as irregular galaxies belonging to our Local Group of galaxies, which also includes our Milky Way galaxy and the Andromeda galaxy. Image via S. Brunier/ ESO.

A disruptive galactic neighbor

The idea that the Large and Small Magellanic Clouds have influence over each other isn’t new. Their interactions have given them distorted shapes, bursts of star formation and streams of gas trailing away from the galaxies.

But the infrared observations spanning more than a decade have allowed astronomers to see a clearer picture of the stellar movements. In fact, the astronomers can see that the stars of the Small Magellanic Cloud are moving outward along a southeast–northwest axis. They said that motion was consistent with the gravitational pull exerted by the neighboring Large Magellanic Cloud.

And it’s not just the outer fringes of stars closest to the Large Magellanic Cloud that are heading outward. The stars even at the Small Magellanic Cloud’s center are heading outward and not rotating around a midpoint.

When might the Small Magellanic Cloud disperse entirely? Well, the stars are moving at an average speed of about 38,000 miles per hour (17 km per second). At that pace, the stars would travel several thousand light-years over the course of a few hundred million years. So while the dwarf galaxy will look distorted sooner rather than later, it still won’t look noticeably different anywhere within our lifetimes.

Past disruptions

Beyond the motions of the stars heading outward from the galaxy, the study also uncovered another distinct motion. This additional motion was northward, and astronomers only found it in the older red giant stars.

The researchers think this motion is leftover from an interaction that occurred more than 2 billion years ago. Life isn’t easy when you have pushy neighbors.

Bottom line: Astronomers have found the stars of our galactic neighbor, the Small Magellanic Cloud, are heading outward. This dwarf galaxy is not rotating, but is in the act of slowly coming apart.

Source: The VMC survey. LV. The coherent expansion of the SMC

Via Leibniz Institute for Astrophysics Potsdam

The post Our galactic neighbor is slowly coming apart first appeared on EarthSky.



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Galactic neighbor: Image of a patch of stars with arrows in rainbow colors moving outward.
The Small Magellanic Cloud is our galactic neighbor. It’s a satellite galaxy that orbits our Milky Way galaxy. Scientists long assumed it was rotating like other galaxies, but new observations show its stars are expanding outward instead. The arrows show the motion of stars away from the center of the galaxy, and the colors indicate the velocities of the stars. Image via ESO/ VISTA VMC/ AIP/ S. Vijayasree.
  • The Small and Large Magellanic Clouds are dwarf satellite galaxies of our Milky Way galaxy.
  • Scientists had thought the Small Magellanic Cloud was rotating, but a new study has found that its stars are racing outwards.
  • It seems it’s being ripped apart by the gravity of its neighbor, the Large Magellanic Cloud.

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Our galactic neighbor is slowly coming apart

The Small and Large Magellanic Clouds are dwarf satellite galaxies orbiting our Milky Way galaxy. Visible with the unaided eye from the Southern Hemisphere, these galaxies appear serene neighbors in southern skies. But on June 2, 2026, scientists from the Leibniz Institute for Astrophysics Potsdam in Germany said that the gravitational pull from the Large Magellanic Cloud is actually ripping the Small Magellanic Cloud apart.

Scientists looked at more than 10 years of observations from the VISTA Survey of the Magellanic Clouds. This allowed them to measure the motions of millions of stars inside the Small Magellanic Cloud. These movements showed the dwarf galaxy was not rotating as once thought. Instead, the galaxy’s stars are racing away from the center. Even the inner stars appear to be heading toward the exit.

Lead author Sreepriya Vijayasree of AIP said:

The results reveal large-scale tidal expansion throughout the Small Magellanic Cloud galaxy and challenge long-standing assumptions that the Small Magellanic Cloud behaves like a rotating disk. The study shows that the internal motions of stars in the Small Magellanic Cloud are dominated not by orderly rotation, but by gravitational disturbances caused by repeated encounters with the Large Magellanic Cloud over billions of years.

The researchers submitted their study in the Letters to the Editor section of the journal Astronomy & Astrophysics. The journal accepted it for publication on May 21, 2026.

More on the Large and Small Magellanic Clouds

The Large Magellanic Cloud is one of the closest galaxies to us at about 160,000 light-years away. Meanwhile, the Small Magellanic Cloud is a bit farther at about 200,000 light-years away. As some of the closest galaxies to our home galaxy, they stand out as big, misty blobs of light under dark skies.

Scientists estimate the Small Magellanic Cloud contains around 3 billion stars, while the Large Magellanic Cloud houses some 30 billion stars. The Large Magellanic Cloud is in the constellations of Dorado and Mensa. And Tucana the Toucan is home to the Small Magellanic Cloud.

Whitish-blue fuzzy oval in upper right and smaller fuzzy oval of light at lower left in starfield.
These are the Large (upper right) and Small (lower left) Magellanic Clouds. They look like smudges on a dark night sky, visible from Earth’s Southern Hemisphere. They’re classified as irregular galaxies belonging to our Local Group of galaxies, which also includes our Milky Way galaxy and the Andromeda galaxy. Image via S. Brunier/ ESO.

A disruptive galactic neighbor

The idea that the Large and Small Magellanic Clouds have influence over each other isn’t new. Their interactions have given them distorted shapes, bursts of star formation and streams of gas trailing away from the galaxies.

But the infrared observations spanning more than a decade have allowed astronomers to see a clearer picture of the stellar movements. In fact, the astronomers can see that the stars of the Small Magellanic Cloud are moving outward along a southeast–northwest axis. They said that motion was consistent with the gravitational pull exerted by the neighboring Large Magellanic Cloud.

And it’s not just the outer fringes of stars closest to the Large Magellanic Cloud that are heading outward. The stars even at the Small Magellanic Cloud’s center are heading outward and not rotating around a midpoint.

When might the Small Magellanic Cloud disperse entirely? Well, the stars are moving at an average speed of about 38,000 miles per hour (17 km per second). At that pace, the stars would travel several thousand light-years over the course of a few hundred million years. So while the dwarf galaxy will look distorted sooner rather than later, it still won’t look noticeably different anywhere within our lifetimes.

Past disruptions

Beyond the motions of the stars heading outward from the galaxy, the study also uncovered another distinct motion. This additional motion was northward, and astronomers only found it in the older red giant stars.

The researchers think this motion is leftover from an interaction that occurred more than 2 billion years ago. Life isn’t easy when you have pushy neighbors.

Bottom line: Astronomers have found the stars of our galactic neighbor, the Small Magellanic Cloud, are heading outward. This dwarf galaxy is not rotating, but is in the act of slowly coming apart.

Source: The VMC survey. LV. The coherent expansion of the SMC

Via Leibniz Institute for Astrophysics Potsdam

The post Our galactic neighbor is slowly coming apart first appeared on EarthSky.



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Names for days of the week come from the solar system

Graphic showing solar system bodies labeled with the days of the week.
Did you know the names for the days of the week come from bodies in our solar system? Image via Pixabay/ EarthSky.

Science news, night sky events and beautiful photos, all in one place. Click here to subscribe to EarthSky’s free daily newsletter.

Names for days of the week come from the solar system

Did you know the days of the week are named after objects in our solar system? Sure, Sunday is easy for us to recognize as being named for the sun. And maybe you can even spot Monday as originating from the moon. But how did Mars become Tuesday?

Well, long ago people looked to the sky to keep track of time. The sun rose and set and rose again and people marked a day. The moon was full and then waned until it disappeared and then grew again to full, and people marked a month of time.

Eventually, according to Kristin Heineman of Colorado State University, the ancient Babylonians back in 2,300 BCE began dividing those months into seven-day segments. Why seven? Because these astronomers monitored the bright lights that wandered among the stars: the sun, moon and five visible planets. Unlike the stars, these seven objects shift location each day or night.

So, the sun, moon and five visible planets became the representatives for each of the days of the week. And, over millennia, the concept of a seven-day week spread around the globe. As the idea spread to other cultures, the names of the week morphed from the gods the planets were named for to gods in other lore with similar attributes.

Sunday is the sun’s day

Sunday is the day of the week that’s easiest to see as having a direct relationship to a solar system object. The name Sunday honored the brightest object in our daytime sky, the sun. Our English word for the sun comes from the Old English version, Sunnandæg, which means “sun’s day.”

This video from NOAA’s GOES-19 SUVI instrument captures a solar flare on the sun on June 3, 2026. Video via NOAA/GOES.

Monday is the moon’s day

Not surprisingly, then, the name Monday comes from “moon’s day.” The moon is the brightest object we can see in the nighttime sky. So not only were months (or should we say moonths?) originally arranged from one full moon to the next, the moon was also honored with a day of the week. The Old English Monandæg, moon’s day, was how we got our English word Monday.

Full moons lined up from lower left to upper right.
View at EarthSky Community Photos. | Saqlain Haider in Pattoki, Punjab, Pakistan captured the full moon on May 31, 2026. Thank you, Saqlain!

Tuesday is Mars’ day

Tuesday is where the days of the week and planets start to look less straightforward. That’s because people of Germanic languages substituted the Roman gods for their own Norse gods. So Mars, the Roman god of war, was switched for the Germanic peoples’ own god of war, Tyr, or Tiw. And then Tiw’s day evolved to become what we know of as Tuesday.

Reddish Mars showing dark spots and a lighter colored area on top.
View at EarthSky Community Photos. | Guido Santacana in San Juan, Puerto Rico, captured Mars on January 31, 2025. Thank you, Guido!
Artwork of a man in armor floating above a battlefield.
This is a 15th-century depiction of Mars, the god of war. Image via Wikimedia Commons. Public domain.

Wednesday is Mercury’s day

Wednesday was named for Mercury. For Romans, Wednesday was Dies Mercurii, the “day of Mercury.” Germanic people translated the day of Mercury to the day of Woden. Woden, or Odin, was the Norse god of travel and similar to Mercury, the fleet-footed messenger. Over time, “Woden’s day” evolved into Wednesday.

Planet with mottling of various colors on its cratered surface, with black background.
View larger. | This enhanced-color image of Mercury comes from NASA’s MESSENGER spacecraft. The colors bring out the chemical, mineralogical and physical differences among the rocks that make up Mercury’s surface. Image via NASA/ Johns Hopkins University Applied Physics Laboratory/ Carnegie Institution of Washington.
Painting on a wall of a man with curly hair holding a kind of scepter.
This fresco of Mercury, or Hermes, was on a wall in Pompeii. It dates to the 1st century. Image via Wikimedia Commons. Public domain.

Thursday is Jupiter’s day

Thursday is probably much more readily recognizable as being Thor’s day. Thor is the powerful Norse god of thunder. And the equivalent Roman god was Jupiter, the king of the gods.

Telescopic closeup of Jupiter showing colorful, swirly belts and zones.
View at EarthSky Community Photos. | Brian Martin captured Jupiter on November 30, 2025, from California. Thank you, Brian!
A bust of a man with a bushy, curly beard and full curly hair.
This bust of Jupiter/ Zeus/ Thor sits in the Vatican. Image via Biser Todorov/ Wikimedia Commons.

Friday is Venus’s day

Friday is in honor of Venus, the brightest planet, which the ancients named for the goddess of love and beauty. For Romans it was Dies Veneris, or “day of Venus”. Germanic peoples connected Venus with the goddess Frigg or Freya, leading to “Frigg’s day,” later shortened to Friday.

Phosphine on Venus: Planet with multicolored feathery clouds in kind of an upside down V-shape.
View larger. | Venus is the brightest planet from Earth and the second-closest planet to the sun. Image via JAXA/ ISAS/ DARTS/ Kevin M. Gill/ Flickr (CC BY 2.0).
Colorful painting of a woman floating above a bunch of other women pointing up at her.
This is a medieval representation of Venus, the goddess of love. Image via Wikimedia Commons.

Saturday is Saturn’s day

Once we hit the end of the week, we’re back on familiar ground again. Saturday kept its Roman planetary connection almost unchanged. Dies Saturni was the “day of Saturn,” named for the planet Saturn and the Roman god of agriculture and time. Unlike the other weekday names, the English-language version did not swap in a Norse god.

The orb of Saturn and its extensive ring system with the planet showing through the rings and a glow behind it all.
The Cassini spacecraft caught the 6th planet from the sun and its rings like never before. In this image, Saturn’s rings are gloriously backlit with the sun blocked by the planet. Image via NASA/ JPL/ Space Science Institute.
A painting of a man draped in white holding a curved stick done on a wall.
This fresco of Saturn was on a wall in Pompeii. Image via Carole Raddato/ Wikimedia Commons.

Bottom line: The names for the days of the week come from the solar system bodies that the ancients could see in the sky.

The post Names for days of the week come from the solar system first appeared on EarthSky.



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Graphic showing solar system bodies labeled with the days of the week.
Did you know the names for the days of the week come from bodies in our solar system? Image via Pixabay/ EarthSky.

Science news, night sky events and beautiful photos, all in one place. Click here to subscribe to EarthSky’s free daily newsletter.

Names for days of the week come from the solar system

Did you know the days of the week are named after objects in our solar system? Sure, Sunday is easy for us to recognize as being named for the sun. And maybe you can even spot Monday as originating from the moon. But how did Mars become Tuesday?

Well, long ago people looked to the sky to keep track of time. The sun rose and set and rose again and people marked a day. The moon was full and then waned until it disappeared and then grew again to full, and people marked a month of time.

Eventually, according to Kristin Heineman of Colorado State University, the ancient Babylonians back in 2,300 BCE began dividing those months into seven-day segments. Why seven? Because these astronomers monitored the bright lights that wandered among the stars: the sun, moon and five visible planets. Unlike the stars, these seven objects shift location each day or night.

So, the sun, moon and five visible planets became the representatives for each of the days of the week. And, over millennia, the concept of a seven-day week spread around the globe. As the idea spread to other cultures, the names of the week morphed from the gods the planets were named for to gods in other lore with similar attributes.

Sunday is the sun’s day

Sunday is the day of the week that’s easiest to see as having a direct relationship to a solar system object. The name Sunday honored the brightest object in our daytime sky, the sun. Our English word for the sun comes from the Old English version, Sunnandæg, which means “sun’s day.”

This video from NOAA’s GOES-19 SUVI instrument captures a solar flare on the sun on June 3, 2026. Video via NOAA/GOES.

Monday is the moon’s day

Not surprisingly, then, the name Monday comes from “moon’s day.” The moon is the brightest object we can see in the nighttime sky. So not only were months (or should we say moonths?) originally arranged from one full moon to the next, the moon was also honored with a day of the week. The Old English Monandæg, moon’s day, was how we got our English word Monday.

Full moons lined up from lower left to upper right.
View at EarthSky Community Photos. | Saqlain Haider in Pattoki, Punjab, Pakistan captured the full moon on May 31, 2026. Thank you, Saqlain!

Tuesday is Mars’ day

Tuesday is where the days of the week and planets start to look less straightforward. That’s because people of Germanic languages substituted the Roman gods for their own Norse gods. So Mars, the Roman god of war, was switched for the Germanic peoples’ own god of war, Tyr, or Tiw. And then Tiw’s day evolved to become what we know of as Tuesday.

Reddish Mars showing dark spots and a lighter colored area on top.
View at EarthSky Community Photos. | Guido Santacana in San Juan, Puerto Rico, captured Mars on January 31, 2025. Thank you, Guido!
Artwork of a man in armor floating above a battlefield.
This is a 15th-century depiction of Mars, the god of war. Image via Wikimedia Commons. Public domain.

Wednesday is Mercury’s day

Wednesday was named for Mercury. For Romans, Wednesday was Dies Mercurii, the “day of Mercury.” Germanic people translated the day of Mercury to the day of Woden. Woden, or Odin, was the Norse god of travel and similar to Mercury, the fleet-footed messenger. Over time, “Woden’s day” evolved into Wednesday.

Planet with mottling of various colors on its cratered surface, with black background.
View larger. | This enhanced-color image of Mercury comes from NASA’s MESSENGER spacecraft. The colors bring out the chemical, mineralogical and physical differences among the rocks that make up Mercury’s surface. Image via NASA/ Johns Hopkins University Applied Physics Laboratory/ Carnegie Institution of Washington.
Painting on a wall of a man with curly hair holding a kind of scepter.
This fresco of Mercury, or Hermes, was on a wall in Pompeii. It dates to the 1st century. Image via Wikimedia Commons. Public domain.

Thursday is Jupiter’s day

Thursday is probably much more readily recognizable as being Thor’s day. Thor is the powerful Norse god of thunder. And the equivalent Roman god was Jupiter, the king of the gods.

Telescopic closeup of Jupiter showing colorful, swirly belts and zones.
View at EarthSky Community Photos. | Brian Martin captured Jupiter on November 30, 2025, from California. Thank you, Brian!
A bust of a man with a bushy, curly beard and full curly hair.
This bust of Jupiter/ Zeus/ Thor sits in the Vatican. Image via Biser Todorov/ Wikimedia Commons.

Friday is Venus’s day

Friday is in honor of Venus, the brightest planet, which the ancients named for the goddess of love and beauty. For Romans it was Dies Veneris, or “day of Venus”. Germanic peoples connected Venus with the goddess Frigg or Freya, leading to “Frigg’s day,” later shortened to Friday.

Phosphine on Venus: Planet with multicolored feathery clouds in kind of an upside down V-shape.
View larger. | Venus is the brightest planet from Earth and the second-closest planet to the sun. Image via JAXA/ ISAS/ DARTS/ Kevin M. Gill/ Flickr (CC BY 2.0).
Colorful painting of a woman floating above a bunch of other women pointing up at her.
This is a medieval representation of Venus, the goddess of love. Image via Wikimedia Commons.

Saturday is Saturn’s day

Once we hit the end of the week, we’re back on familiar ground again. Saturday kept its Roman planetary connection almost unchanged. Dies Saturni was the “day of Saturn,” named for the planet Saturn and the Roman god of agriculture and time. Unlike the other weekday names, the English-language version did not swap in a Norse god.

The orb of Saturn and its extensive ring system with the planet showing through the rings and a glow behind it all.
The Cassini spacecraft caught the 6th planet from the sun and its rings like never before. In this image, Saturn’s rings are gloriously backlit with the sun blocked by the planet. Image via NASA/ JPL/ Space Science Institute.
A painting of a man draped in white holding a curved stick done on a wall.
This fresco of Saturn was on a wall in Pompeii. Image via Carole Raddato/ Wikimedia Commons.

Bottom line: The names for the days of the week come from the solar system bodies that the ancients could see in the sky.

The post Names for days of the week come from the solar system first appeared on EarthSky.



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