National Geographic's top 10 space pictures 2007
(National Geographic)
Updated: 2007-12-27 16:32
Updated: 2007-12-27 16:32
Helix nebula. Dust from comets that survived the death of their star is clouding the "eye" of the distant Helix nebula, as revealed by an image released by NASA's Spitzer Space Telescope on Feb. 12.
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