Related topics: nasa · spacecraft · solar system · earth · asteroid

Image: New comet viewer

From a distance of five million kilometres to within 20 metres, ESA's Rosetta spacecraft captured images of Comet 67P/Churyumov-Gerasimenko from all angles.

Comet

A comet is a Small Solar System Body that orbits the Sun. When close enough to the Sun, a comet exhibits a visible coma (fuzzy "atmosphere"), and sometimes a tail, both because of the effects of solar radiation upon the comet's nucleus. Comet nuclei are themselves loose collections of ice, dust and small rocky particles, ranging from a few kilometers to tens of kilometers across.

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