Like a mushroom shooting out spores, a well-known comet was seen firing multiple "mini comets" that went sailing away at up to 280 miles (451 kilometers) an hour, astronomers have announced. The fragments were recently revealed in high-resolution images of comet Holmes, a relatively small body discovered in 1892 that mysteriously erupted in 2007, when the above images were taken. Over several days astronomers using the Canada-France-Hawaii telescope on Mauna Kea watched the 2.2-mile-wide. (source: news.nationalgeographic.com)
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