Swift Satellite Tracks C/2007 N3 - Comet Lulin

Friday, February 20, 2009 - 10:36 in Astronomy & Space

Astronomers using the NASA Swift Satellite are tracking a spectacular comet as it closes in on Earth and sheds gas and dust from its vaporized ice. A comet is a clump of frozen gases mixed with dust. These "dirty snowballs" cast off gas and dust whenever they venture near the sun. Comet Lulin, which is formally known as C/2007 N3, was discovered last year by astronomers at Taiwan's Lulin Observatory. The comet is now faintly visible from a dark site. Lulin will pass closest to Earth - 38 million miles, or about 160 times farther than the moon - on February 24. read more

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