(Phys.org) —A team made up of members from research facilities in France and China has found that theoretical models built to describe sand dune formation align very closely with how they actually form in nature. In their ...
(Phys.org) —NASA research indicates hunks of frozen carbon dioxide—dry ice—may glide down some Martian sand dunes on cushions of gas similar to miniature hovercraft, plowing furrows as they go.
Space Exploration
Jun 11, 2013
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Last year, images from NASA's Mars Reconnaissance Orbiter captured sand dunes and ripples moving across the surface of Mars—observations that challenged previously held beliefs that there was not a lot of movement on ...
Space Exploration
May 9, 2012
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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
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The main cause of a rapid global cooling period, known as the Big Freeze or Younger Dryas - which occurred nearly 13,000 years ago - has been identified thanks to the help of an academic at the University of Sheffield.
Earth Sciences
Mar 31, 2010
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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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(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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At first, figuring out how pebble-sized rocks organize themselves in evenly-spaced patterns in sand seemed simple and even intuitive. But once Andrew Leier, an assistant geoscience professor at the U of C, started observing, ...
Space Exploration
Jan 7, 2009
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A researcher at Colorado State University has developed a potential approach for identifying and understanding dark matter using the soon-to-be-built gigantic particle detectors at the international Deep Underground Neutrino ...
Astronomy
Mar 29, 2024
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Scientists have solved the mysterious absence of star-shaped dunes from Earth's geological history for the first time, dating one back thousands of years.
Earth Sciences
Mar 4, 2024
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