On March 21st, Comet 252P/LINEAR will make a close approach to Earth--only 0.036 AU (5.4 million km) away. This is the fifth closest cometary approach on record and, as a result, the normally dim comet could become an easy target for backyard telescopes. In fact, it is brightening much faster than expected: data. Read More: http://www.spaceweather.com/
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