If one looks only for the shiniest pennies in the fountain, chances are one misses most of the coins because they shimmer less brightly. This, in a nutshell, is the conundrum astronomers face when searching for Earth-like ...
Astronomy
Jun 6, 2013
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(Phys.org) —NASA and international researchers have discovered that Earth's moon has more in common than previously thought with large asteroids roaming our solar system.
Space Exploration
Mar 25, 2013
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The Earth's forests perform a well-known service to the planet, absorbing a great deal of the carbon dioxide pollution emitted into the atmosphere from human activities. But when trees are killed by natural disturbances, ...
Environment
Jan 28, 2013
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On Jan. 23, 2013, at 9:55 a.m. EST, the sun erupted with an Earth-directed coronal mass ejection, or CME. Experimental NASA research models, based on observations from the Solar Terrestrial Relations Observatory (STEREO) ...
Space Exploration
Jan 24, 2013
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(Phys.org)—The mechanism by which water is incorporated into the terrestrial planets is a matter of extensive debate for planetary scientists. Now, observations of Vesta by NASA's Dawn mission suggest that hydrous materials ...
Space Exploration
Sep 26, 2012
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The chronic drought that hit western North America from 2000 to 2004 left dying forests and depleted river basins in its wake and was the strongest in 800 years, scientists have concluded, but they say those conditions will ...
Environment
Jul 29, 2012
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The continent of Antarctica is at risk from human activities and other forces, and environmental management is needed to protect the planet's last great wilderness area, says an international team of researchers, including ...
Environment
Jul 12, 2012
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(PhysOrg.com) -- A global collaboration including five University of Notre Dame researchers has revised the half-life of samarium-146 (146Sm), reducing it to 68 million years from 103 million years. The finding is published ...
Astronomy
Apr 2, 2012
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Recent modeling of solar mass stars with planetary systems, found that a system with four rocky planets and four gas giants in stable orbits – and only a sparsely populated outer belt of planetesimals – has only ...
Astronomy
Apr 11, 2011
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The law of probabilities backs theories that we are not alone in the Universe, although an encounter with an advanced civilisation may shock our species, scientists at a conference said here on Monday.
Space Exploration
Jan 25, 2010
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