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Wednesday, April 22, 2009
Sibling Planets!
The Lightest exoplanet yet discovered is Gliese 581 e, another planet in the same system as the first "super-Earth" planet that was found, Gliese 581 c. E is not quite twice the mass of Earth, making it the least massive planet found to date and "very likely, a rocky planet". While it doesn't lie in it's star's habitable zone (sad) another sibling planet - Gliese 581 d - does! It's 7 times as massive as Earth, but hey, why does that have to prevent the possibility of life?
Woo!
Woo!
Labels: Space
Posted by: trekker9er : 2:13 PM 
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