• March 18, 2010

    Episode 266: New Comet

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    The Wide-Field Infrared Survey Explorer (WISE), launched by NASA on Dec. 14, 2009, is designed to look at faint objects in the infrared. In February, WISE spotted a new comet as it surveyed the sky. The comet circles the Sun every 4.7 years. WISE needs the public's help to observe the objects it discovers, since the probe won't view them again once they're found. Ground-based observations will help identify the comet's orbit.