It's nearly 300 million miles away and barreling toward us. The intruder from deep space, called called comet Elenin, crosses Earth's orbit on its inbound leg and again on its outbound swing around the sun later this year. Russian astronomer Leonid Elenin discovered the innocuous little comet on Dec. 10, 2010, at International Scientific Optical Network's robotic observatory near Mayhill, New Mexico. Presently the comet is a faint smudge of light in deep sky exposures. By late August comet Elenin should be visible to the naked eye as a dim "fuzzy star" with a tail. Over a few weeks the visitor will speed across the spring constellation Virgo and toward Leo on its outbound leg.
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