Near Earth object
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To help avoid being surprised by new discoveries of near-Earth asteroids and comets, NASA, Planetary Resources, and Zooniverse have formed a collaboration to use citizen scientists to detect members of the vast swarm of near-Earth objects not yet recognized or mapped.
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ScienceAsteroid 2012 DA14 will miss Earth by less than 32,000 km (20,000 miles) on February 15.