SciFri Book Club Has 'The Right Stuff'

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Which Came First: The Galaxy Or The Black Hole?

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Researchers say they have identified traces of ice in craters on Mercury, seen here in this Oct. 8, 2008, image from the Messenger spacecraft. NASA hide caption

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Space Probe Finds Ice In Mercury's Craters

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Ask A NASA Astrobiologist About Dec. 21 'Doomsday'

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Ig Nobel Prizes Celebrate Somewhat Suspect Science

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NASA's Mars rover Curiosity dug up five scoops of sand from a patch nicknamed "Rocknest." A suite of instruments called SAM analyzed Martian soil samples, but the findings have not yet been released. NASA/JPL-Caltech hide caption

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Big News From Mars? Rover Scientists Mum For Now

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Searching For 'The Particle At The End Of The Universe'

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Untitled, by South African artist Gavin Jantjes, is one of the works in the "African Cosmos" exhibition. National Museum of African Art hide caption

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Millennia Of Stargazing At 'African Cosmos' Exhibit

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Amateur 'Planet Hunters' Find One With Four Suns

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Spacecraft Records 'Chorus' of Space Sounds

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Scientists In The Dark Over Birth Of The Moon

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An artist's impression shows a planet, right, orbiting the star Alpha Centauri B, center, a member of the triple star system that is the closest to Earth. ESO/L. Calcada/AP hide caption

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Scientist Find Nearest Planet Outside Solar System

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