News tagged with gullies
By Simulating Gullies, Geographers Discover Ways to Tame Soil Erosion
Space & Earth / Earth Sciences
Oct 12, 2009 |
5 / 5 (3) |
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(PhysOrg.com) -- Dead zones in critical waterways, accelerated loss of arable land and massive famines. They're all caused by the 24 billion tons of soil that are lost every year to erosion, a phenomenon that ...
Model Suggests Origins of Mars Gullies
Space & Earth / Earth Sciences
Feb 09, 2009 |
4.6 / 5 (8) |
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University of Arkansas researchers have used chemistry and geology to create a model that may explain the mystery of how modern-day gullies form on the surface of Mars.
Antarctic research helps shed light on climate change on Mars
Space & Earth / Earth Sciences
Aug 28, 2008 |
4.8 / 5 (9) |
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Researchers examining images of gullies on the flanks of craters on Mars say they formed as recently as a few hundred thousand years ago and in sites once occupied by glaciers. The features are eerily reminiscent of gullies ...
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Water May Not Have Formed Mars' Recent Gullies
Mar 16, 2006 |
4.3 / 5 (24) |
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If you're a scientist studying the surface of Mars, few discoveries could be more exciting than seeing recent gullies apparently formed by running water. And that's what scientists believed they saw in Mars ...
Gullies and Flow Features on Crater Wall
Space & Earth / Space Exploration
Nov 26, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- This image from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter shows a sample of the variety and complexity of processes that may occur ...
Liquid water found flowing on Mars? Not yet
Space & Earth / Space Exploration
Feb 29, 2008 |
4.5 / 5 (24) |
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Liquid water has not been found on the Martian surface within the last decade after all, according to new research. The finding casts doubt on the 2006 report that the bright spots in some Martian gullies ...
Gullies on Mars show tantalizing signs of recent water activity
Space & Earth / Space Exploration
Mar 02, 2009 |
4.4 / 5 (19) |
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(PhysOrg.com) -- Planetary geologists at Brown University have found a gully fan system on Mars that formed about 1.25 million years ago. The fan offers compelling evidence that it was formed by melt water ...
NASA Study Shows Water Could Create Gullies on Mars
Aug 26, 2005 |
not rated yet |
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NASA scientists say liquid water formed recent gullies on Mars. A NASA-led team will present its Mars gully findings at the American Astronomical Society's Division for Planetary Sciences annual meeting in ...
Pikes Peak Highway gets a face-lift
Dec 13, 2007 |
5 / 5 (1) |
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Construction is set to begin on a $6 million face-lift to restore terrain near Pikes Peak Highway in Colorado.
Possible Signs of Liquid Water Flowing on Mars
Space & Earth / Space Exploration
Dec 06, 2006 |
4.5 / 5 (68) |
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NASA photographs have revealed bright new deposits seen in two gullies on Mars that suggest water carried sediment through them sometime during the past seven years.
Mars Reconnaissance Orbiter Provides Insights About Mars Water
Space & Earth / Space Exploration
Sep 21, 2007 |
4.2 / 5 (21) |
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NASA's Mars Reconnaissance Orbiter (MRO) is examining several features on Mars that address the role of water at different times in Martian history.
Hummocky and shallow Maunder crater
Space & Earth / Space Exploration
Oct 16, 2007 |
3.5 / 5 (4) |
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The High Resolution Stereo Camera (HRSC) on ESA’s Mars Express orbiter has obtained pictures of the Noachis Terra region on Mars, in particular, the striking Maunder crater.
Mineral discovery explains Mars' landscape
Space & Earth / Earth Sciences
Oct 23, 2006 |
3.7 / 5 (39) |
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A Queen's University researcher has discovered a mineral that could explain the mountainous landscape of Mars, and have implications for NASA's next mission to the planet.
List of search results for gullies
