This is really exciting: an international team of astronomers has discovered that Tau Ceti, the closest single star like our Sun, has planets just like our solar system. But more importantly, one of these planets orbits in the habitable zone
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Doomsday 2012: Watch the 'End of the World' Live Online
Anyone worried that the world will come to an end Friday (Dec. 21) can scan the heavens online this week for any signs of death from
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