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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A fragment of the meteor that crashed into Tissint, Morocco. Mark Mauthner/Heritage Auctions hide caption

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For Sale: A Chunk Of Mars

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Space Shuttle Endeavour Rolls To Its Resting Place

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Curiosity Rover Gets the 'Scoop' on Mars

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2012 Nobel Prizes Recognize Pioneering Science

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