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Smallest Kuiper Belt Object Detected
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Smallest Kuiper Belt Object Detected

December 22, 2009
This is an artist's impression of a one-half-mile-diameter Kuiper Belt Object (KBO) that was detected by NASA's Hubble Space Telescope. The icy relic from the early solar system is too small for Hubble to photograph. The object was detected when it passed in front of a background star, temporarily disrupting the starlight.


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