Earth-size planet capable of life discovered
Odds of Life on Newfound Earth-Size Planet '100 Percent,' Astronomer SaysBy Jeanna Bryner
LiveScience Managing Editor
posted: 29 September 2010
05:03 pm ET
This story was updated at 5:37 p.m. ET.
An Earth-size planet has been spotted orbiting a nearby star at a distance that would makes it not too hot and not too cold — comfortable enough for life to exist, researchers announced today (Sept. 29).
If confirmed, the exoplanet, named Gliese 581g, would be the first Earth-like world found residing in a star's habitable zone — a region where a planet's temperature could sustain liquid water on its surface. [Illustration of planet Gliese 581g.]
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