Image via NASA/JPL-Caltech/University of Arizona.
On February 8, 2018, NASA released this image, taken by the Mars Reconnaissance Orbiter (MRO) spacecraft. The image shows streaks forming on slopes of the Martian surface when dust cascades downhill.
According to NASA:
These streaks are often diverted by the terrain they flow down. This one has split into many smaller streaks where it encountered minor obstacles …The dark streak is an area of less dust compared to the brighter and reddish surroundings.
These streaks fade away over decades as more dust slowly settles out of the Martian sky.
Scientists dont know what triggers these avalanches, but suggest it might be related to sudden warming of the planets surface.
Bottom line: Image shows streaks forming on slopes on planet Mars when dust cascades downhill.
from EarthSky http://ift.tt/2EUjQqm
Image via NASA/JPL-Caltech/University of Arizona.
On February 8, 2018, NASA released this image, taken by the Mars Reconnaissance Orbiter (MRO) spacecraft. The image shows streaks forming on slopes of the Martian surface when dust cascades downhill.
According to NASA:
These streaks are often diverted by the terrain they flow down. This one has split into many smaller streaks where it encountered minor obstacles …The dark streak is an area of less dust compared to the brighter and reddish surroundings.
These streaks fade away over decades as more dust slowly settles out of the Martian sky.
Scientists dont know what triggers these avalanches, but suggest it might be related to sudden warming of the planets surface.
Bottom line: Image shows streaks forming on slopes on planet Mars when dust cascades downhill.
from EarthSky http://ift.tt/2EUjQqm
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