Wednesday, April 25, 2007

An Earthlike world (or close, at least)

European astronomers report finding the most Earth-like "exoplanet" so far. The planet has a radius only 50% larger than the Earth and is in the habitable zone of its star, the red dwarf Gliese 581, with temperatures allowing liquid water. It may, in Star Trek terms, be the first Class M planet known to lie outside our solar system.

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