Possibly habitable world found

Astronomers have found the first extrasolar planet where carbon-based “life as we know it” could conceivably exist:

A planet of about five times Earth mass, one whose radius is only 1.5 times that of our own world. Moreover, a planet that’s smack in the middle of its star’s habitable zone, with a mean temperature estimated at between 0 and 40 degrees Celsius. The models in question say that this is a rocky world, and its temperatures tell us that oceans could exist there.

The star, an M-class red dwarf, is called Gliese 581 and is “only” about 20.5 light years away, in the constellation Libra.

Very cool!

(Via Tobias S. Buckell.)

Permanent link to this article: https://edwardwillett.com/2007/04/possibly-habitable-world-found/

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