NASA's Earth Observatory has tracked down images resembling all 26 letters of the English alphabet using only NASA satellite imagery and astronaut photography. In this image, the letter 'Y' is for yardangs, elongated landforms ...
Earth Sciences
Jan 1, 2016
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7
Mysterious dark sand dunes around Mars' northern polar cap are shifting with the seasons, as carbon dioxide gas changes form and sparks landscape-altering avalanches, said a study published Thursday.
Space Exploration
Feb 3, 2011
7
0
In a vivid illustration of natural selection at work, scientists at Harvard University have found that deer mice living in Nebraska's Sand Hills quickly evolved lighter coloration after glaciers deposited sand dunes atop ...
Evolution
Aug 27, 2009
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Details of an ancient cousin of modern-day mammals are being revealed for the first time. Hi-tech scanning of an ancient fossil, which was captured in sandstone around 252–254 million years ago, is giving experts valuable ...
Biotechnology
Jun 18, 2024
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150
(Phys.org) —Geologists continue to puzzle over the how and why of crescent-shaped sand dunes called barchans, found on Earth and on Mars. Barchans can form on the seafloor and on ice, as well as deserts. How do they happen? ...
Of all the organisms that photosynthesize, land plants have the most complex bodies. How did this morphology emerge? A team of scientists led by the University of Göttingen has taken a deep dive into the evolutionary history ...
Plants & Animals
Jan 23, 2024
0
102
Nothing says springtime on Mars like defrosting dunes.
Planetary Sciences
Mar 17, 2022
3
632
(PhysOrg.com) -- Titan's vast dune fields, which may act like weather vanes to determine general wind direction on Saturn's biggest moon, have been mapped by scientists who compiled four years of radar data collected by the ...
Space Exploration
Feb 27, 2009
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0
What does Elvis Presley have in common with a sand dune? No, it's not that people sometimes spot both in the vicinity of Las Vegas. Instead, some sand dunes, like The King, can sing. And new research looking for clues to ...
Space Exploration
Oct 25, 2012
1
0
18 months into her mission to discover a habitable zone on the Red Planet, NASA's Curiosity rover has at last looked back to the inhabited zone of all humanity and snapped her 1st image of all 7 Billion Earthlings living ...
Space Exploration
Feb 7, 2014
2
0
