News tagged with dunes

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Mice living in sandy hills quickly evolved lighter coloration

Mice living in sandy hills quickly evolved lighter coloration

Biology / Evolution

created Aug 27, 2009 | popularity 4.8 / 5 (5) | comments 9

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 ...


Detail from a Cassini radar image of sand dunes on Titan

Scientist finds alternate explanation for dune formation on Titan

Space & Earth / Space Exploration

created Aug 25, 2009 | popularity 4.2 / 5 (6) | comments 0

A new and likely controversial paper has just been published online in Nature Geoscience by LSU Department of Geography and Anthropology Chair Patrick Hesp and United States Geological Survey scientist David ...


Ancient mammal tracks found at national monument (AP)

Ancient mammal tracks found at national monument

Other Sciences / Archaeology & Fossils

created Jul 24, 2009 | popularity 5 / 5 (4) | comments 0

(AP) -- Hundreds of tiny footprints left by mammals some 190 million years ago have been found on a canyon wall in a remote part of Dinosaur National Monument, park officials said Thursday.


Mars Rover Update

Mars Rover Update

Space & Earth / Space Exploration

created Mar 26, 2009 | popularity 4.3 / 5 (7) | comments 5

In January 2004, NASA landed two identical robotic rovers named Spirit and Opportunity on the surface of Mars. The twins were primed for a brief 3-month mission to tell us a story of water and possibly life ...


What determines the size of giant dunes?

Physics / General Physics

created Mar 04, 2009 | popularity 5 / 5 (3) | comments 0

Physicists at the Laboratory of Physics and Mechanics of Heterogeneous Media (CNRS / Université Paris Diderot / ESPCI ParisTech / Université Pierre et Marie Curie) have shown, in collaboration with scientists ...


Cassini Maps Global Pattern of Titan's Dunes

Cassini Maps Global Pattern of Titan's Dunes

Space & Earth / Space Exploration

created Feb 27, 2009 | popularity 4.9 / 5 (8) | comments 0

(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 ...


Martian rock arrangement not alien handiwork

Space & Earth / Space Exploration

created Jan 07, 2009 | popularity 4.4 / 5 (8) | comments 2

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, ...