A "super-Earth" is a planet around another star (an "exoplanet") whose mass is less than about ten times that of the Earth. Of the 480 or so extrasolar planets now known, most have masses larger than the mass ...
Aug 27, 2010
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Hundreds of extrasolar planets have been found over the past decade and a half, most of them solitary worlds orbiting their parent star in seeming isolation. With further observation, however, one in three ...
Jul 29, 2010
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The hunt is on for Earth-like planets outside of our solar system. Since the 1990s, astronomers have detected more than 450 extrasolar planets -- mostly large Jupiter-sized bodies -- around nearby stars. Advances in technology ...
Jul 22, 2010
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Astronomers have used a completely new technique to find an exotic extrasolar planet. The same approach might even be sensitive enough to find planets as small as the Earth in orbit around distant stars.
Jul 09, 2010
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(PhysOrg.com) -- NASA's Deep Impact/EPOXI spacecraft flew past Earth Sunday (June 27) at approximately 3:03 p.m. Pacific time (6:03 p.m. Eastern time), as planned.
Jun 29, 2010
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(PhysOrg.com) -- Using the world’s largest optical telescope, a team of University of Florida astronomers has pioneered a new method of observing planets outside our solar system. The method suggests that large Earth-based ...
Jun 24, 2010
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Two planet-hunting telescopes - CoRoT and Kepler - are keeping astronomers hard at work cataloging far-distant planets that orbit other stars in our galaxy. The search for distant planets is essential for ...
Jun 23, 2010
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(PhysOrg.com) -- NASA's Deep Impact/Epoxi spacecraft successfully performed a maneuver to refine its orbit prior to an upcoming Earth flyby June 27.
May 31, 2010
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(PhysOrg.com) -- Since the first planet around another star (an "extrasolar planet") was discovered by SAO astronomers and others in 1989, over 450 extrasolar planets have been found. Their study now comprises a whole new ...
Apr 26, 2010
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The Mars Global Surveyor (MGS) is a NASA mission that arrived at Mars in September, 1997, and for nine years circled the planet every two hours in a polar orbit (that is, traveling from the north pole to the ...
Mar 16, 2010
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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.
Jan 25, 2010
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Of the roughly 420 extra-solar planets now known, about a dozen are in the newly named category of "super-earths," planets whose masses are in between of two and about fifteen earth-masses.
Jan 22, 2010
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(PhysOrg.com) -- Astronomers from the California Institute of Technology and other institutions, using the highly sensitive 10-meter Keck I telescope atop Hawaii's Mauna Kea, have detected an extrasolar planet ...
Jan 13, 2010
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(PhysOrg.com) -- In two new videos from NASA's Deep Impact spacecraft, bright flashes of light known as sun glints act as beacons signaling large bodies of water on Earth. These observations give scientists ...
Jan 05, 2010
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(PhysOrg.com) -- In their quest to find solar systems analogous to ours, astronomers have determined how common our solar system is.
Jan 05, 2010
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