Most Earthlike Planet Yet Found May Have Liquid Oceans

Tuesday, April 21, 2009 - 18:23
Cosmology
news.nationalgeographic.com

planet known as Gliese 581d has a lot more in common with Earth than astronomers first thought. ... New measurements of the planet's orbit place it firmly in a region where conditions would be right for liquid water, and thus life as we know it.... orbits its host in 66.8 days, putting it just inside the cool star's habitable zone....

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