ISON appears to have broken up after brush with sun

Scientists now agree that comet has disintegrated, leaving only dust

By Gabriel Popkin, 17:46 PM December 3, 2013

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Comet ISON has disintegrated in the sun’s intense heat and gravity, according to a growing consensus among astronomers. But even as it broke up, ISON provided valuable information about cometary composition.

ISON's closest approach to the sun occurred on Thanksgiving Day. Images from the Solar and Heliospheric Observatory, jointly run by NASA and the European Space Agency, showed a bright object flying away from the sun, giving astronomers hope that ISON had survived, even if dim...

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