Comet nucleus
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The nucleus is the solid, central part of a comet, formerly termed a dirty snowball or an icy dirtball. A cometary nucleus is composed of rock, dust, and frozen gases. When heated by the Sun, the gase
The nucleus of Comet Tempel 1
Tempel 1 and Hartley 2 compared
C/2006 W3 (Christensen) – emitting carbon gas
Surface of the nucleus of Comet 67P from 10 km away as seen by Rosetta spacecraft
67P/Churyumov–Gerasimenko
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67P/Churyumov–Gerasimenko is a Jupiter-family comet. It is originally from the Kuiper belt and has an orbital period of 6.45 years as of 2012, a rotation period of approximately 12.4 hours, and a maxi
Comet 67P/Churyumov–Gerasimenko in true colour, as seen by ESA's Rosetta spacecraft in December 2014
First image of comet taken by Rosetta on 21 March 2014, with Messier 107 in view
False-colour image of the comet outgassing, 15 April 2015
A reconstruction of the nucleus's shape based on Hubble observations in 2003