This animation shows Comet Siding Spring’s path as it comes within 132,000 kilometres (82,000 miles) of Mars on 19 October 2014.
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Astronomers capture best view ever of disintegrating comet
The sharpest, most detailed observations of a comet breaking apart have been captured with the NASA/ESA Hubble Space Telescope. The images suggest that the roughly 4.5-billion-year-old comet, named 332P/Ikeya-Murakami, may be spinning so fast that material is ejected from its surface. The resulting debris is now scattered along a 3,000-mile-long trail.