The amount of solar radiation passing through Earth's atmosphere and reaching the ground globally peaked in the 1930s, substantially decreased from the 1940s to the 1970s, and changed little after that, a new study has found.
Earth Sciences
Aug 26, 2013
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The true identity of centaurs, the small celestial bodies orbiting the sun between Jupiter and Neptune, is one of the enduring mysteries of astrophysics. Are they asteroids or comets? A new study of observations from NASA's ...
Space Exploration
Jul 25, 2013
0
1
If there is life on Mars, it's not too farfetched to believe that such Martian species may share genetic roots with life on Earth.
Space Exploration
Jul 9, 2013
6
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(Phys.org) —Scientists have created the first global topographic map of Saturn's moon Titan, giving researchers a valuable tool for learning more about one of the most Earth-like and interesting worlds in the solar system. ...
Space Exploration
May 15, 2013
1
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(Phys.org) —As Earth moves around the sun, it travels surrounded by a giant bubble created by its own magnetic fields, called the magnetosphere. As the magnetosphere plows through space, it sets up a standing bow wave or ...
Space Exploration
Apr 16, 2013
1
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(Phys.org)—For seven years, a mini-fridge-sized instrument aboard NASA's Cassini spacecraft reliably investigated weather patterns swirling around Saturn; the hydrocarbon composition of the surface of Saturn's moon Titan; ...
Space Exploration
Dec 21, 2012
0
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(PhysOrg.com) -- NASA's Dawn spacecraft has sent back the first images of the giant asteroid Vesta from its low-altitude mapping orbit. The images, obtained by the framing camera, show the stippled and lumpy surface in detail ...
Space Exploration
Dec 21, 2011
3
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(PhysOrg.com) -- Yellowstone National Park sits on top of a vast, ancient, and still active volcano. Heat pours off its underground magma chamber, and is the fuel for Yellowstone's famous features -- more than 10,000 hot ...
Earth Sciences
Dec 8, 2011
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Why the temperatures in the solar wind are almost the same in certain directions, and why different energy densities are practically identical, was until now not clear.
General Physics
Nov 15, 2011
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(PhysOrg.com) -- On the Earth, dust particles are everywhere - under beds, on bookshelves, even floating in the air. We take dust for granted. Dust is also common in space, and it is found for example in the cold, dark molecular ...
Astronomy
Jul 6, 2011
5
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