Erosion of Earth's topography entrains sediment in rivers flowing across mountains, canyons and other naturally steep landscapes within the catchment. This silt, sand and gravel is transported variably by suspension in the ...
Science fiction writers have long featured terraforming, the process of creating an Earth-like or habitable environment on another planet, in their stories. Scientists themselves have proposed terraforming to enable the long-term ...
Space Exploration
Jul 30, 2018
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Mars scientists are wrestling with a problem. Ample evidence says ancient Mars was sometimes wet, with water flowing and pooling on the planet's surface. Yet, the ancient sun was about one-third less warm and climate modelers ...
Space Exploration
Feb 6, 2017
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(Phys.org)—One of the biggest and most important findings made by NASA recently was the confirmation that liquid water currently flows on Mars. Scientists suspected this a long time ago, but really strong evidence was needed ...
New findings from NASA's Mars Reconnaissance Orbiter (MRO) provide the strongest evidence yet that liquid water flows intermittently on present-day Mars.
Space Exploration
Sep 28, 2015
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(Phys.org) —A team of Chinese researchers along with representatives from the US and Japan have found that ground fractures along fault lines due to earthquakes appear to heal faster than previously thought. In their paper ...
Instead of a warm, wet and possibly life-bearing planet as some scientists contend, early Mars may have been a hostile and volatile place with frequent volcanic outbursts, a study said Sunday.
Space Exploration
Sep 9, 2012
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0
(PhysOrg.com) -- A new NASA study suggests if life ever existed on Mars, the longest lasting habitats were most likely below the Red Planet's surface.
Space Exploration
Nov 2, 2011
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(PhysOrg.com) -- Researchers at the California Institute of Technology (Caltech) have directly determined the surface temperature of early Mars for the first time, providing evidence that's consistent with a warmer and wetter ...
Space Exploration
Oct 12, 2011
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0
(PhysOrg.com) -- A team of NASA (National Aeronautics and Space Administration) scientists is looking for clues about life on Mars in an earthy clay mineral found only in Aberdeenshire in Scotland.
