Scientists watch man-made flood of Grand Canyon
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More than 135 years after explorer John Wesley Powell first surveyed this ancient canyon, his writings seemed to echo last week as water roared down the Colorado River.
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It wasn&#39;t anywhere near as big as Noah&#39;s worldwide flood -- but evidence is pouring in from a Mars-orbiting satellite that a vast plain on the Red Planet must once have held a deep ocean bigger than all the Great Lakes put together.
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After months of crossing a vast Martian crater floor and zigzagging up low-slung hills, NASA&#39;s Spirit rover has spotted its first hint that water once coursed across the now-desert-like region, scientists said Wednesday.
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Scientists at the American Museum of Natural Historyâs Science Bulletins program use data from satellites to generate HD visualizations. Harnessing the advanced graphics and processing power of the Mac, they render 3D animations from their scientific observations to bring the evidence of global change directly to the general public. Join them at an Apple Store, San Francisco, and Apple Store, North Michigan Avenue.
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By Matt Weiser, The Sacramento Bee, Calif.  Dec. 19--A new network of high-tech weather sensors is making the streams, tributaries and dams of the American River the country's most closely monitored water system.
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By CHRIS KAHN Associated Press  HUALAPAI INDIAN RESERVATION, Ariz. -- A struggling Indian tribe is hoping to change its fortunes by luring tourists out over the edge of the Grand Canyon on a glass-bottom observation deck 4,000 feet above the Colorado River.
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On National Geographic News: Science & Technology
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Scientists are puzzled, but the phenomenon seems to fit the latest global-warming models.
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The Department of the Interior&#39;s US Geological Survey is collaborating with partner agencies to conduct scientific experiments designed to evaluate the effect of a high-flow release from Glen Canyon Dam on the natural resources of the Colorado River in
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Before its death, Mars Global Surveyor captures images of  water flowing on the surface of the red planet. In Gear Factor.
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Pictures of Martian gullies taken years apart suggest that liquid water still flows on the planetÂs surface.
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A massive floodcrest has passed safely through the Three Gorges Dam on China&#39;s Yangtze River as devastated communities upstream clean up from floods that killed at least 177 people and injured thousands.
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A great &quot;flush&quot; of the Colorado River began Sunday morning when four bypass tubes at the base of Glen Canyon Dam were slowly opened, shooting huge jets of water about 150 feet out into the river.
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By JOHN JOHNSON JR.  NASA scientists announced Wednesday that they had found evidence that water still flows over the surface of Mars - sporadic gushers that increase the possibility that the Red Planet could harbor some form of life.
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Environmentalists have complained for years that the Colorado River below a manmade dam was washing away natural sediment in the Grand Canyon, wiping away beaches and native fish and plants.
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There is no scientific evidence to back claims of man-made global warming. Period. Anyone who tells you that scientific research shows warming trends--be they teachers, newscasters, Congressmen, Senators, Vice Presidents or Presidents--is wrong.
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HUALAPAI INDIAN RESERVATION, Ariz. - A struggling Indian tribe is hoping to change its fortunes by luring tourists out over the edge of the Grand Canyon on a glass-bottom observation deck 4,000 feet above the Colorado River.