(PhysOrg.com) -- The widespread idea that Mars is red due to rocks being rusted by the water that once flooded the red planet may be wrong. Recent laboratory studies show that the red dust may be formed by ongoing grinding ...
Space Exploration
Sep 18, 2009
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Scientists have reconstructed the formation of two curious features in the northern ice cap of Mars—a chasm larger than the Grand Canyon and a series of spiral troughs—solving a pair of mysteries dating back four decades ...
Earth Sciences
May 26, 2010
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The Arctic ice cap will disappear completely in summer months within 20 to 30 years, a polar research team said as they presented findings from an expedition led by adventurer Pen Hadow.
Earth Sciences
Oct 15, 2009
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(PhysOrg.com) -- By studying fossilized mollusks from some 3.5 million years ago, UCLA geoscientists and colleagues have been able to construct an ancient climate record that holds clues about the long-term effects of Earth's ...
Earth Sciences
Apr 8, 2011
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(Phys.org)—Spring is a dynamic season on the dunes surrounding Mars' north pole. When frozen carbon dioxide, or dry ice, deposited as a winter ice cap on Mars sublimates – changes directly from a solid to a gas – in ...
Space Exploration
Jan 24, 2013
0
1
Volcanoes erupted beneath an ice sheet on Mars billions of years ago, far from any ice sheet on the Red Planet today, new evidence from NASA's Mars Reconnaissance Orbiter suggests.
Space Exploration
May 3, 2016
0
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Polar bears look set to see their numbers dwindle by nearly third by mid-century, a top conservation body said Thursday, warning climate change poses the greatest threat to the king of the Arctic.
Ecology
Nov 19, 2015
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Millions of years ago, rivers ran in Antarctica through craggy mountain valleys that were strangely similar to the European Alps of today, Chinese and British scientists reported on Wednesday.
Earth Sciences
Jun 3, 2009
2
0
Geologists from Brown University have developed a promising new explanation for a mysterious type of crater on the surface on Mars.
Space Exploration
Aug 5, 2013
10
0
An unmanned NASA spacecraft will reveal details of Pluto's surface for the first time Tuesday, as it speeds by the dwarf planet after a near decade-long journey.
Space Exploration
Jul 13, 2015
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