News tagged with extrasolar planets

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Discovery of an extrasolar earth-sized planet

(PhysOrg.com) -- There are now over 490 confirmed extrasolar planets. The vast majority are gas giants like Jupiter, but they are much stranger because many orbit close to their stars and so are much hotter ...

dateOct 08, 2010 in Astronomy
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Destroyer of worlds

(PhysOrg.com) -- Astronomers, in addition to discovering extrasolar planets (about 500 of them currently have known orbital parameters), have detected excess, warm infrared dust emission around many stars.

dateSep 24, 2010 in Astronomy
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Water-Ice Super-Earths

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 ...

dateAug 27, 2010 in Astronomy
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A New Way to Find Earths

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.

dateJul 09, 2010 in Astronomy
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Water Planets

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.

dateJan 22, 2010 in Astronomy
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Astronomers spot second smallest exoplanet

(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 ...

dateJan 13, 2010 in Astronomy
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