News tagged with sand

Putting it all together on Titan

Three of Titan's major surface features -- dunes, craters and the enigmatic Xanadu -- appear in this radar image from NASA's Cassini spacecraft. The hazy, bright area at the left that extends to the lower ...

dateAug 09, 2011 in Space Exploration
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These grains can be solid, liquid or dust

(PhysOrg.com) -- Take a walk along the beach and you might marvel at any number of things: the cresting waves, the occasional scuttling crab, the shells and odd shapes of driftwood that wash ashore.

dateMar 24, 2010 in Other
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In deserts, which dunes are the most stable?

By modeling a desert where the wind blows in two directions, French researchers from CNRS and Universite Paris Dideror have succeeded in observing and highlighting, for the very first time, the formation process ...

dateMay 28, 2010 in Earth Sciences
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Transverse instability of megaripples

Aeolian ripples, which form regular patterns on sand beaches and desert floors, indicate the fundamental instability of flat sand surfaces under the wind-induced transport of sand grains.

dateMar 20, 2012 in Earth Sciences
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Galloping beetles could be counting steps

(Phys.org) —A species of dung beetle in the Western Cape has given up its ability to fly and instead gallops across the sand in a behaviour which researchers suspect evolved as a way to navigate back and ...

dateOct 21, 2013 in Plants & Animals
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Image: Martian sand dunes in spring

(Phys.org) —Mars' northern-most sand dunes are beginning to emerge from their winter cover of seasonal carbon dioxide (dry) ice. Dark, bare south-facing slopes are soaking up the warmth of the sun.

dateMar 07, 2014 in Space Exploration
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