NASA's Valentine date with a comet
LOS ANGELES (AP) - February 14, 2011 (WPVI) -- After eyeing a comet for the past four years, a NASA spacecraft will finally make its move.
The Stardust craft is expected to fly within 125 miles of comet Tempel 1 on Valentine's night, snapping pictures of the surface.
Tempel 1 was visited by another NASA probe in 2005 when Deep Impact fired a copper bullet into the comet, excavating a crater.
If successful, it'll be the first time scientists will have before-and-after images of Tempel 1.
Scientists are interested in comets because they're leftover building blocks of the solar system.
valentine's day, outer space, nasa, science/technology
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