Ask Ethan: The Multiverse And The Road Not Traveled (Synopsis) [Starts With A Bang]

“Go then, there are other worlds than these.” –Stephen King, The Dark Tower

When you think about the Multiverse, everyone thinks about the Universe beyond what’s accessible to us. But whether you think about more Universe like our own, multiple Universe that are disconnected from ours, an infinite number of parallel Universes, where possibly multiple copies of identical “yous” are entangled, or where the laws of physics are different from our own depends on what type of Multiverse you’re talking about.

Image credit: Bock et al. (2006, astro-ph/0604101); modifications by me.

Image credit: Bock et al. (2006, astro-ph/0604101); modifications by me.

As it turns out, our standard picture of inflation, the Big Bang and quantum physics leads to some of these being quite likely, with others being grossly disfavored. Before you follow the speculations of a great many others down whatever rabbit-hole of thought they’d lead you, come learn about what’s known, what’s expected and what’s highly speculative (and unobservable) based on our current knowledge.

Image credit: Moonrunner Design, via http://ift.tt/1gDTszV.

Image credit: Moonrunner Design, via http://ift.tt/1gDTszV.

It’s a multiverse spectacular on this week’s Ask Ethan!



from ScienceBlogs http://ift.tt/1m4MPMZ

“Go then, there are other worlds than these.” –Stephen King, The Dark Tower

When you think about the Multiverse, everyone thinks about the Universe beyond what’s accessible to us. But whether you think about more Universe like our own, multiple Universe that are disconnected from ours, an infinite number of parallel Universes, where possibly multiple copies of identical “yous” are entangled, or where the laws of physics are different from our own depends on what type of Multiverse you’re talking about.

Image credit: Bock et al. (2006, astro-ph/0604101); modifications by me.

Image credit: Bock et al. (2006, astro-ph/0604101); modifications by me.

As it turns out, our standard picture of inflation, the Big Bang and quantum physics leads to some of these being quite likely, with others being grossly disfavored. Before you follow the speculations of a great many others down whatever rabbit-hole of thought they’d lead you, come learn about what’s known, what’s expected and what’s highly speculative (and unobservable) based on our current knowledge.

Image credit: Moonrunner Design, via http://ift.tt/1gDTszV.

Image credit: Moonrunner Design, via http://ift.tt/1gDTszV.

It’s a multiverse spectacular on this week’s Ask Ethan!



from ScienceBlogs http://ift.tt/1m4MPMZ

Happy Birthday, ONR: 70 Years of Game-Changing Science and Technology

ONRBy the Office of Naval Research

As 2016 kicks into gear, the Office of Naval Research (ONR) is kicking off a series of events throughout the year to celebrate 70 years of developing cutting-edge science and technology (S&T) for U.S. naval forces.

It was in August 1946, just after the Second World War, that Congress mandated a new military command to identify and cultivate forward-looking science and technology capabilities, to ensure the superiority of U.S. warfighters.

“ONR’s S&T mission execution over these past 70 years has provided the foundation for a safer, more technologically relevant world for us all,” said Chief of Naval Research Rear Adm. Mat Winter. “By discovering and working with top minds, both here at home and around the world, our fostering of scientific research to support naval power and academic excellence remains as vital today as it was 70 years ago.”

Some of the planned events and commemorations of the 70th anniversary include:

  • Distinguished Lecture Series: Groundbreaking innovators—who have made a major impact on past research or are working on discoveries for the future—will speak at ONR over the course of the year, in lectures open to the public.
  • Pentagon commemoration and tech display: An observation of past, present and future S&T contributions by ONR will be held at the Pentagon on June 24. In addition, a special series of events will be held on Aug. 1, the day President Harry Truman signed the bill that established ONR.
  • Office of Naval Research Turns 70 ONR celebrates 70 years of innovation in 2016. For seven decades, ONR through its commandsincluding ONR Global and the Naval Research Laboratory in Washington, D.C.has been leading the discovery, development and delivery of technology innovations for the Navy and Marine Corps.
  • 70 Stories of Innovation: The ONR website will showcase some of the command’s breakthrough discoveries since 1946.

Long recognized as a leading sponsor of S&T advances through partnerships across government, industry and academia, ONR manages short-, mid- and long-term scientific research investments, serving as the “venture capital” for America’s technological superiority.

Basic research seeds future discoveries, while quick-reaction S&T research programs help develop innovative concepts and accelerate mature technology deliveries to the fleet.

“From essential early advances in radar and GPS, to hybrid electric drive motors and swarming autonomous vehicles today, to shipboard railguns and lasers in the future, ONR has been there to meet Navy and Marine Corps needs—to envision the art of the impossible and change science fiction to science fact,” said Dr. Lawrence Schuette, ONR’s director of research.

“To achieve the level of technological advances our Sailors and Marines enjoy today took the talents of countless scientists, engineers and others who have dedicated themselves to ONR’s creed: America’s future force should never be in a fair fight.”

ONR’s establishment in 1946 marked the first time a peacetime organization would use government funds to support civilian science and technology research at universities, laboratories and businesses.

Since that fateful year, the command, along with its Naval Research Enterprise organizations that include ONR Global and the Naval Research Laboratory, has played a leading role in many of the most important discoveries and inventions—from the earliest computer systems and software, to the exploration of the ocean’s depths, to new materials and sensors that have been integrated into everything from household items to warships.

Whether it’s the latest technology in the hands of Sailors or Marines, or systems that keep everyday people in contact with each other, ONR has had a hand in making the world of tomorrow a reality today.

For ongoing updates throughout the year on ONR’s 70th anniversary celebration, visit http://ift.tt/1WTy1yc. View a copy of the original law that established ONR, with President Truman’s signature.



from Armed with Science http://ift.tt/1WTy4Kc

ONRBy the Office of Naval Research

As 2016 kicks into gear, the Office of Naval Research (ONR) is kicking off a series of events throughout the year to celebrate 70 years of developing cutting-edge science and technology (S&T) for U.S. naval forces.

It was in August 1946, just after the Second World War, that Congress mandated a new military command to identify and cultivate forward-looking science and technology capabilities, to ensure the superiority of U.S. warfighters.

“ONR’s S&T mission execution over these past 70 years has provided the foundation for a safer, more technologically relevant world for us all,” said Chief of Naval Research Rear Adm. Mat Winter. “By discovering and working with top minds, both here at home and around the world, our fostering of scientific research to support naval power and academic excellence remains as vital today as it was 70 years ago.”

Some of the planned events and commemorations of the 70th anniversary include:

  • Distinguished Lecture Series: Groundbreaking innovators—who have made a major impact on past research or are working on discoveries for the future—will speak at ONR over the course of the year, in lectures open to the public.
  • Pentagon commemoration and tech display: An observation of past, present and future S&T contributions by ONR will be held at the Pentagon on June 24. In addition, a special series of events will be held on Aug. 1, the day President Harry Truman signed the bill that established ONR.
  • Office of Naval Research Turns 70 ONR celebrates 70 years of innovation in 2016. For seven decades, ONR through its commandsincluding ONR Global and the Naval Research Laboratory in Washington, D.C.has been leading the discovery, development and delivery of technology innovations for the Navy and Marine Corps.
  • 70 Stories of Innovation: The ONR website will showcase some of the command’s breakthrough discoveries since 1946.

Long recognized as a leading sponsor of S&T advances through partnerships across government, industry and academia, ONR manages short-, mid- and long-term scientific research investments, serving as the “venture capital” for America’s technological superiority.

Basic research seeds future discoveries, while quick-reaction S&T research programs help develop innovative concepts and accelerate mature technology deliveries to the fleet.

“From essential early advances in radar and GPS, to hybrid electric drive motors and swarming autonomous vehicles today, to shipboard railguns and lasers in the future, ONR has been there to meet Navy and Marine Corps needs—to envision the art of the impossible and change science fiction to science fact,” said Dr. Lawrence Schuette, ONR’s director of research.

“To achieve the level of technological advances our Sailors and Marines enjoy today took the talents of countless scientists, engineers and others who have dedicated themselves to ONR’s creed: America’s future force should never be in a fair fight.”

ONR’s establishment in 1946 marked the first time a peacetime organization would use government funds to support civilian science and technology research at universities, laboratories and businesses.

Since that fateful year, the command, along with its Naval Research Enterprise organizations that include ONR Global and the Naval Research Laboratory, has played a leading role in many of the most important discoveries and inventions—from the earliest computer systems and software, to the exploration of the ocean’s depths, to new materials and sensors that have been integrated into everything from household items to warships.

Whether it’s the latest technology in the hands of Sailors or Marines, or systems that keep everyday people in contact with each other, ONR has had a hand in making the world of tomorrow a reality today.

For ongoing updates throughout the year on ONR’s 70th anniversary celebration, visit http://ift.tt/1WTy1yc. View a copy of the original law that established ONR, with President Truman’s signature.



from Armed with Science http://ift.tt/1WTy4Kc

ISS and planets over New Mexico

ISS and planets on January 23, 2016 by Colleen Gino in Polvadera, New Mexico

ISS and planets on January 23, 2016 by Colleen Gino in Polvadera, New Mexico

Colleen Gino submitted this photo of the International Space Station (ISS) and morning planets. She wrote:

I live in a fairly rural part of central New Mexico so I have very dark skies. I take advantage of our dark skies as often as possible and am usually out at some point in the late night or early morning looking for something to photograph. After checking http://ift.tt/qwdft4 I was excited to see that there would be a nice, high, long ISS pass that would be over the five planets. In the end I could only see four planets, due to the cloud cover on the horizon. I’m still very happy with the shot and it looks just as I envisioned.

Nikon D810 with Rokinon 12mm fish eye lens at f/4. ISO 1250, 30 second exposures. There are 15 exposures covering the time span of 6:02 to 6:13 a.m.

15 images stacked in Photoshop to get the complete ISS pass. On the 14 layers above the base layer everything but the ISS pass is masked out to avoid star trails. Planets and pass labeled. The trail that crosses the ISS at the right is a contrail.

Thank you, Colleen!



from EarthSky http://ift.tt/1Ux3SmL
ISS and planets on January 23, 2016 by Colleen Gino in Polvadera, New Mexico

ISS and planets on January 23, 2016 by Colleen Gino in Polvadera, New Mexico

Colleen Gino submitted this photo of the International Space Station (ISS) and morning planets. She wrote:

I live in a fairly rural part of central New Mexico so I have very dark skies. I take advantage of our dark skies as often as possible and am usually out at some point in the late night or early morning looking for something to photograph. After checking http://ift.tt/qwdft4 I was excited to see that there would be a nice, high, long ISS pass that would be over the five planets. In the end I could only see four planets, due to the cloud cover on the horizon. I’m still very happy with the shot and it looks just as I envisioned.

Nikon D810 with Rokinon 12mm fish eye lens at f/4. ISO 1250, 30 second exposures. There are 15 exposures covering the time span of 6:02 to 6:13 a.m.

15 images stacked in Photoshop to get the complete ISS pass. On the 14 layers above the base layer everything but the ISS pass is masked out to avoid star trails. Planets and pass labeled. The trail that crosses the ISS at the right is a contrail.

Thank you, Colleen!



from EarthSky http://ift.tt/1Ux3SmL

Extremely loud, very close lightning strike

My main internet connection is still down and I have been very busy trying to scource replacements and claim insurance for essential security related electrical equipment that was put out of action by this lightning strike …

On the afternoon of January 25, 2016, the drought, which has been affecting Mutare and Eastern Zimbabwe for several weeks, broke in spectacular fashion with a violent thunderstorm, torrential rain and very strong winds. At 16:46 local time, there was a single extremely loud and very close lightning strike on my premises which was captured on video by a Panasonic Lumix TZ-10 compact camera which I had set up on a tripod on the front verandah overlooking Murambi suburb.

The blinding light and deafening whip-crack report from the lightning bolt were so intense that I was unable to hear or see anything for a while after diving to a crouch position. The 15-second interval between the lightning strike and my exclamation of astonishment, is how long it took to recover my vision, hearing, balance and composure!

The YouTube video clip, which is a short extract from an original recording 17 minutes long, has five sections which play back at four speeds – normal, 50%, 25%, 10% and normal again.

The strike did not cause structural damage to the house but burnt out thousands of dollars worth of electrical equipment despite installed voltage switches, regulators and surge protectors.

Fortunately, noone was injured even though some of the lightning entered an occupied kitchen in the domestic quarters through a closed window to find earth at the electric cooker power point.

Meanwhile, 150 millimeters of much-needed rain has fallen in the three days following the storm with more forecast to come.



from EarthSky http://ift.tt/1KhelSS

My main internet connection is still down and I have been very busy trying to scource replacements and claim insurance for essential security related electrical equipment that was put out of action by this lightning strike …

On the afternoon of January 25, 2016, the drought, which has been affecting Mutare and Eastern Zimbabwe for several weeks, broke in spectacular fashion with a violent thunderstorm, torrential rain and very strong winds. At 16:46 local time, there was a single extremely loud and very close lightning strike on my premises which was captured on video by a Panasonic Lumix TZ-10 compact camera which I had set up on a tripod on the front verandah overlooking Murambi suburb.

The blinding light and deafening whip-crack report from the lightning bolt were so intense that I was unable to hear or see anything for a while after diving to a crouch position. The 15-second interval between the lightning strike and my exclamation of astonishment, is how long it took to recover my vision, hearing, balance and composure!

The YouTube video clip, which is a short extract from an original recording 17 minutes long, has five sections which play back at four speeds – normal, 50%, 25%, 10% and normal again.

The strike did not cause structural damage to the house but burnt out thousands of dollars worth of electrical equipment despite installed voltage switches, regulators and surge protectors.

Fortunately, noone was injured even though some of the lightning entered an occupied kitchen in the domestic quarters through a closed window to find earth at the electric cooker power point.

Meanwhile, 150 millimeters of much-needed rain has fallen in the three days following the storm with more forecast to come.



from EarthSky http://ift.tt/1KhelSS

News digest – drug approval, flexible pressure sensor, pen-sized microscope, engineered molecules and… olive oil?

A flexible pressure sensor that wraps around and conforms to the shape of the fingers while still accurately measuring pressure distribution.
  • We launched a new “Cough-up” campaign asking the Government to make tobacco companies pay for the damage they cause with a levy to help fund Stop Smoking Services. Here’s our press release, you can sign the petition here and we blogged about the campaign too.
  • The World Health Organisation released new figures on the global burden of childhood obesity. Here’s the Guardian’s report.
  • Japanese scientists have developed a flexible pressure sensor that could be used in health examinations. But it’s some way off being used to detect breast cancer, as claimed by the Mail Online.
  • A pen-sized microscope developed by US scientists could give doctors a quick way to spot the difference between healthy and cancerous tissue. It needs testing in clinical trials first though, but Wired and Gizmodo have the details.
  • The ovarian cancer drug olaparib (Lynparza) – which our scientists played a key role in developing – will be made available on the NHS for women with faulty BRCA1 or 2 genes and who have responded to chemotherapy. The Guardian has more on this.
  • Alongside this the National Institute for Health and Care Excellence also published three other recommendations for cancer treatments.
  • US scientists believe they can engineer new molecules, allowing cells to ‘sense’ and respond to changes in the body, including cancer. STAT News covered this, but it’s still at the stages of tinkering in lab-grown cells for now.

Number of the week

4,000

The profit (in pounds) made by the tobacco industry for each death caused by smoking.

  • Men with advanced prostate cancer can now be treated with the chemotherapy drug docetaxel before waiting to see if hormone-based treatments have failed, according to new NHS guidelines. The Guardian has more on this.
  • US research in fish is uncovering the earliest origins of melanoma, reports the New York Times.
  • A small study of women treated for breast cancer found that chemotherapy can have long-lasting effects on the levels of immune cells in the body. The Mail Online covered this, but larger studies are needed to fully pin down how this might affect patients.
  • While death rates from lung cancer are falling, more women are dying of the disease in the UK than in other EU countries, according to new stats. The Mail Online has the details.
  • The bacteria that cause anthrax are being modified by scientists as a possible way of getting drugs inside cancer cells. But this is very early research on cells grown in the lab, so the Express and Mirror got a little carried away in their reports.
  • Infection with certain forms of the human papillomavirus (HPV) may be linked to a very small number of breast cancers, according to Australian researchers. But this study alone can’t prove a link, so further research is needed, reports the Guardian.
  • A US focused study examined the number of people diagnosed with bowel cancer at different ages. STAT News has the details.
  • STAT News also covered the first step towards US President Barack Obama’s cancer ‘moonshot’.
  • Vice interviewed our chief clinician, Professor Peter Johnson, about the big challenges in tackling cancer.

And finally

  • Don’t buy olive oil from this fake ‘archbishop’.

Nick



from Cancer Research UK - Science blog http://ift.tt/1m3TMxN
A flexible pressure sensor that wraps around and conforms to the shape of the fingers while still accurately measuring pressure distribution.
  • We launched a new “Cough-up” campaign asking the Government to make tobacco companies pay for the damage they cause with a levy to help fund Stop Smoking Services. Here’s our press release, you can sign the petition here and we blogged about the campaign too.
  • The World Health Organisation released new figures on the global burden of childhood obesity. Here’s the Guardian’s report.
  • Japanese scientists have developed a flexible pressure sensor that could be used in health examinations. But it’s some way off being used to detect breast cancer, as claimed by the Mail Online.
  • A pen-sized microscope developed by US scientists could give doctors a quick way to spot the difference between healthy and cancerous tissue. It needs testing in clinical trials first though, but Wired and Gizmodo have the details.
  • The ovarian cancer drug olaparib (Lynparza) – which our scientists played a key role in developing – will be made available on the NHS for women with faulty BRCA1 or 2 genes and who have responded to chemotherapy. The Guardian has more on this.
  • Alongside this the National Institute for Health and Care Excellence also published three other recommendations for cancer treatments.
  • US scientists believe they can engineer new molecules, allowing cells to ‘sense’ and respond to changes in the body, including cancer. STAT News covered this, but it’s still at the stages of tinkering in lab-grown cells for now.

Number of the week

4,000

The profit (in pounds) made by the tobacco industry for each death caused by smoking.

  • Men with advanced prostate cancer can now be treated with the chemotherapy drug docetaxel before waiting to see if hormone-based treatments have failed, according to new NHS guidelines. The Guardian has more on this.
  • US research in fish is uncovering the earliest origins of melanoma, reports the New York Times.
  • A small study of women treated for breast cancer found that chemotherapy can have long-lasting effects on the levels of immune cells in the body. The Mail Online covered this, but larger studies are needed to fully pin down how this might affect patients.
  • While death rates from lung cancer are falling, more women are dying of the disease in the UK than in other EU countries, according to new stats. The Mail Online has the details.
  • The bacteria that cause anthrax are being modified by scientists as a possible way of getting drugs inside cancer cells. But this is very early research on cells grown in the lab, so the Express and Mirror got a little carried away in their reports.
  • Infection with certain forms of the human papillomavirus (HPV) may be linked to a very small number of breast cancers, according to Australian researchers. But this study alone can’t prove a link, so further research is needed, reports the Guardian.
  • A US focused study examined the number of people diagnosed with bowel cancer at different ages. STAT News has the details.
  • STAT News also covered the first step towards US President Barack Obama’s cancer ‘moonshot’.
  • Vice interviewed our chief clinician, Professor Peter Johnson, about the big challenges in tackling cancer.

And finally

  • Don’t buy olive oil from this fake ‘archbishop’.

Nick



from Cancer Research UK - Science blog http://ift.tt/1m3TMxN

See all 5 planets in the morning sky!

The time is ripe for catching all five visible planets in the morning sky. All five bright planets are now appearing in the same sky for the first time since the year 2005. Get up 80 minutes or so before sunrise to see five planets stringing across the great vault of the morning sky.

Tomorrow morning, on Sunday, January 31, let the waning moon guide you to the ruddy planet Mars and the sparkling blue-white star Spica. (See sky chart below.) On Sunday, January 31, the lit side of the moon points in the direction of Mars while the dark side points toward Spica. By the way, if you have difficulty distinguishing the color of Mars from Spica with the eye alone, try your luck with binoculars.

View larger. For illustrative purposes, the moon appears larger than it does in the real sky. Mid-northern latitudes in Europe and Asia see the planets similarly positioned, yet see the moon somewhat offset toward the previous date. The green line on the above chart depicts the ecliptic - Earth's orbital plane projected onto the constellations of the Zodiac.

View larger. | The moon is now beginning its sweep past 5 planets – and also some bright stars – in the early morning sky. Look for the moon and Jupiter late and night January 27 and in the early morning of January 28. Watch for Mars near the moon on the morning of February 1. See photos of the 5 planets, from the EarthSky community.

By visible or bright planet, we mean any planet in our own solar system that’s easily viewed without an optical aid and that has been watched by our ancestors since time immemorial.

Refer to the sky chart below, which covers a wide expanse of sky. Once you find the moon, Mars and Spica, go on from there to locate the brilliant planet Jupiter to the west (right) of Mars and Spica. Then look for dazzling Venus, the most brilliant planet of them all, to the east (lower left) of Mars. Saturn is found roughly midway between Venus and Mars, and the elusive planet Mercury sits below Venus, pretty much on line with Venus and Saturn.

Beginning around January 20 - through mid-February - you can see five bright planets at once in the predawn sky.

View larger. | Beginning around January 20 – through mid-February – you can see five bright planets at once in the predawn sky.

Mercury, the solar system’s innermost planet, is by far the most difficult planet to spot. But you can do it! About 80 to 60 minutes before sunrise, draw an imaginary line from Saturn through Venus to seek for Mercury rather close to the horizon. Given clear skies and good seeing conditions, you can see Mercury with the eye alone. But binoculars always come in handy for any Mercury quest, especially since the sky is often murky near the horizon. Good luck!

Over the following week, the moon will be traveling eastward relative to the background stars and planets. Let the moon continue to show you the morning stars and planets from now through the first week of February. See the sky chart below.

View larger. For illustrative purposes, the moon appears larger than it does in the real sky. Mid-northern latitudes in Europe and Asia will see the moon somewhat offset toward the previous date. The green line on the above chart depicts the ecliptic - Earth's orbital plane projected onto the constellations of the Zodiac.

View larger. | Keep watching in early February, as the moon sweeps past Saturn, Venus and Mercury. The green line represents the ecliptic – path of the sun, moon and planets across the sky’s dome.

Read more: See all 5 planets at once!

While the time is at hand, see all five visible planets in the morning sky. Given clear skies, all five planets should be yours to behold for another couple weeks.



from EarthSky http://ift.tt/1P3qKqk

The time is ripe for catching all five visible planets in the morning sky. All five bright planets are now appearing in the same sky for the first time since the year 2005. Get up 80 minutes or so before sunrise to see five planets stringing across the great vault of the morning sky.

Tomorrow morning, on Sunday, January 31, let the waning moon guide you to the ruddy planet Mars and the sparkling blue-white star Spica. (See sky chart below.) On Sunday, January 31, the lit side of the moon points in the direction of Mars while the dark side points toward Spica. By the way, if you have difficulty distinguishing the color of Mars from Spica with the eye alone, try your luck with binoculars.

View larger. For illustrative purposes, the moon appears larger than it does in the real sky. Mid-northern latitudes in Europe and Asia see the planets similarly positioned, yet see the moon somewhat offset toward the previous date. The green line on the above chart depicts the ecliptic - Earth's orbital plane projected onto the constellations of the Zodiac.

View larger. | The moon is now beginning its sweep past 5 planets – and also some bright stars – in the early morning sky. Look for the moon and Jupiter late and night January 27 and in the early morning of January 28. Watch for Mars near the moon on the morning of February 1. See photos of the 5 planets, from the EarthSky community.

By visible or bright planet, we mean any planet in our own solar system that’s easily viewed without an optical aid and that has been watched by our ancestors since time immemorial.

Refer to the sky chart below, which covers a wide expanse of sky. Once you find the moon, Mars and Spica, go on from there to locate the brilliant planet Jupiter to the west (right) of Mars and Spica. Then look for dazzling Venus, the most brilliant planet of them all, to the east (lower left) of Mars. Saturn is found roughly midway between Venus and Mars, and the elusive planet Mercury sits below Venus, pretty much on line with Venus and Saturn.

Beginning around January 20 - through mid-February - you can see five bright planets at once in the predawn sky.

View larger. | Beginning around January 20 – through mid-February – you can see five bright planets at once in the predawn sky.

Mercury, the solar system’s innermost planet, is by far the most difficult planet to spot. But you can do it! About 80 to 60 minutes before sunrise, draw an imaginary line from Saturn through Venus to seek for Mercury rather close to the horizon. Given clear skies and good seeing conditions, you can see Mercury with the eye alone. But binoculars always come in handy for any Mercury quest, especially since the sky is often murky near the horizon. Good luck!

Over the following week, the moon will be traveling eastward relative to the background stars and planets. Let the moon continue to show you the morning stars and planets from now through the first week of February. See the sky chart below.

View larger. For illustrative purposes, the moon appears larger than it does in the real sky. Mid-northern latitudes in Europe and Asia will see the moon somewhat offset toward the previous date. The green line on the above chart depicts the ecliptic - Earth's orbital plane projected onto the constellations of the Zodiac.

View larger. | Keep watching in early February, as the moon sweeps past Saturn, Venus and Mercury. The green line represents the ecliptic – path of the sun, moon and planets across the sky’s dome.

Read more: See all 5 planets at once!

While the time is at hand, see all five visible planets in the morning sky. Given clear skies, all five planets should be yours to behold for another couple weeks.



from EarthSky http://ift.tt/1P3qKqk

Study: Higher gun ownership rates up the risk of a woman being murdered [The Pump Handle]

In the midst of another national debate over gun safety regulations, some argue that higher rates of gun ownership will protect people from dangerous strangers with deadly intentions. Physician and public health researcher Michael Siegel set out to study that argument. He ultimately found no relationship between gun ownership and stranger-related firearm homicides. But he did find that gun ownership levels translated into higher homicide risks for one group in particular — women.

“Our data refute the hypothesis that the more guns out there, the more of a deterrent there is to strangers committing firearm crimes,” Siegel, a professor in the Boston University School of Public Health, told me. “However, we found ownership rates were significantly correlated with non-stranger homicide rates. It’s the worst of both worlds because on the one hand, a higher prevalence of guns doesn’t seem to protect anyone…but it does increase the risk that non-strangers will kill each other with guns.”

To conduct the study, which was published in the journal Violence and Gender, Siegel and study co-author Emily Rothman, an associate public health professor at Boston University, examined state-specific homicide data from the Supplemental Homicide Reports of the FBI’s Uniform Crime Reports. Siegel noted that his study is the first to examine the relationship between gun ownership and homicide rates at the state level, in which the data is broken down by gender and by the nature of the relationship between the victim and perpetrator (i.e. stranger versus non-stranger). The study found that women living in states with higher rates of gun ownership faced a greater risk of being killed by someone they knew when compared to women in states with a lower rate of gun ownership.

But here’s the really interesting part: Among men, the difference in state-based firearm ownership rates explained about 1.5 percent of the variation in firearm-related homicide rates. For women, firearm ownership rates explained 40 percent of the variation in homicide rates with a firearm. In other words, while multiple factors must be considered in predicting the male homicide rate, just knowing a state’s gun ownership rate would allow a researcher to fairly accurately predict the female homicide rate.

“That finding was pretty striking for us,” Siegel said.

Simply put, more guns in a state means more women are killed. Siegel and Rothman write:

The magnitude of the association between firearm ownership and femicide committed by firearm was substantial. For each 10 percentage point increase in firearm ownership, our model predicts that the female firearm-related homicide rate increases by 10.2 percent. Thus, if the proportion of firearm ownership in Wyoming were 40 percent (the mean for all states) instead of 73 percent, our model predicts that its homicide rate would be approximately 33.8 percent lower (2.2 per 100,000 instead of 3.3 per 100,000).

In studying data that spanned from 1981 to 2013, researchers found that firearms were used in about 62 percent of homicides. More than 78 percent of all homicides involved an offender who was an intimate partner, family member or other acquaintance. In all, a non-stranger perpetrated more than three-quarters of the firearm-related homicides studied. But while men were more likely to be killed with a firearm, women were more likely to be killed with a gun by someone they knew.

The study found no evidence that greater availability of guns protects women from being killed. On the contrary, the study suggests that greater availability of guns translates into a higher risk that a woman will be killed by someone she knows.

“The data is just not consistent with the argument that having a high prevalence of firearms is protective against stranger homicide,” Siegel told me. “But for women, the level of gun ownership in a state is one of the primary factors in predicting her risk of being killed by a firearm.”

One of the obvious policy implications of Siegel and Rothman’s study is underscoring the importance of rules that restrict gun ownership among domestic violence offenders or those who’ve violated restraining orders. However, Siegel said the study also speaks to the critical importance of studying gun violence from a public health perspective — something the Centers for Disease Control and Prevention has been prohibited from doing for years. In 2013, President Obama signed an executive order allowing CDC to resume gun violence research and has recommended new funding for such research, though such funding proposals haven’t made it through Congress.

“This is a national problem — a societal problem — and everyone needs to be involved in tackling it,” Siegel said. “It really will take national resolve.”

To request a full copy of the new study, visit Violence and Gender.

Kim Krisberg is a freelance public health writer living in Austin, Texas, and has been writing about public health for nearly 15 years.



from ScienceBlogs http://ift.tt/1SOQI75

In the midst of another national debate over gun safety regulations, some argue that higher rates of gun ownership will protect people from dangerous strangers with deadly intentions. Physician and public health researcher Michael Siegel set out to study that argument. He ultimately found no relationship between gun ownership and stranger-related firearm homicides. But he did find that gun ownership levels translated into higher homicide risks for one group in particular — women.

“Our data refute the hypothesis that the more guns out there, the more of a deterrent there is to strangers committing firearm crimes,” Siegel, a professor in the Boston University School of Public Health, told me. “However, we found ownership rates were significantly correlated with non-stranger homicide rates. It’s the worst of both worlds because on the one hand, a higher prevalence of guns doesn’t seem to protect anyone…but it does increase the risk that non-strangers will kill each other with guns.”

To conduct the study, which was published in the journal Violence and Gender, Siegel and study co-author Emily Rothman, an associate public health professor at Boston University, examined state-specific homicide data from the Supplemental Homicide Reports of the FBI’s Uniform Crime Reports. Siegel noted that his study is the first to examine the relationship between gun ownership and homicide rates at the state level, in which the data is broken down by gender and by the nature of the relationship between the victim and perpetrator (i.e. stranger versus non-stranger). The study found that women living in states with higher rates of gun ownership faced a greater risk of being killed by someone they knew when compared to women in states with a lower rate of gun ownership.

But here’s the really interesting part: Among men, the difference in state-based firearm ownership rates explained about 1.5 percent of the variation in firearm-related homicide rates. For women, firearm ownership rates explained 40 percent of the variation in homicide rates with a firearm. In other words, while multiple factors must be considered in predicting the male homicide rate, just knowing a state’s gun ownership rate would allow a researcher to fairly accurately predict the female homicide rate.

“That finding was pretty striking for us,” Siegel said.

Simply put, more guns in a state means more women are killed. Siegel and Rothman write:

The magnitude of the association between firearm ownership and femicide committed by firearm was substantial. For each 10 percentage point increase in firearm ownership, our model predicts that the female firearm-related homicide rate increases by 10.2 percent. Thus, if the proportion of firearm ownership in Wyoming were 40 percent (the mean for all states) instead of 73 percent, our model predicts that its homicide rate would be approximately 33.8 percent lower (2.2 per 100,000 instead of 3.3 per 100,000).

In studying data that spanned from 1981 to 2013, researchers found that firearms were used in about 62 percent of homicides. More than 78 percent of all homicides involved an offender who was an intimate partner, family member or other acquaintance. In all, a non-stranger perpetrated more than three-quarters of the firearm-related homicides studied. But while men were more likely to be killed with a firearm, women were more likely to be killed with a gun by someone they knew.

The study found no evidence that greater availability of guns protects women from being killed. On the contrary, the study suggests that greater availability of guns translates into a higher risk that a woman will be killed by someone she knows.

“The data is just not consistent with the argument that having a high prevalence of firearms is protective against stranger homicide,” Siegel told me. “But for women, the level of gun ownership in a state is one of the primary factors in predicting her risk of being killed by a firearm.”

One of the obvious policy implications of Siegel and Rothman’s study is underscoring the importance of rules that restrict gun ownership among domestic violence offenders or those who’ve violated restraining orders. However, Siegel said the study also speaks to the critical importance of studying gun violence from a public health perspective — something the Centers for Disease Control and Prevention has been prohibited from doing for years. In 2013, President Obama signed an executive order allowing CDC to resume gun violence research and has recommended new funding for such research, though such funding proposals haven’t made it through Congress.

“This is a national problem — a societal problem — and everyone needs to be involved in tackling it,” Siegel said. “It really will take national resolve.”

To request a full copy of the new study, visit Violence and Gender.

Kim Krisberg is a freelance public health writer living in Austin, Texas, and has been writing about public health for nearly 15 years.



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