Published on Jan 15, 2015

From NASA/JPL's YouTube channel

This movie shows the progression of NASA's NEOWISE survey in the year after its Dec. 2013 restart. Each dot represents an asteroid or comet that the mission observed.
Green dots represent near-Earth objects (asteroids and comets that come within 1.3 astronomical units of the sun; one astronomical unit is Earth's distance from the sun).
Yellow squares represent comets.
Gray dots represent all other asteroids, which are mostly in the main asteroid belt between Mars and Jupiter. The orbits of Mercury, Venus, Earth, and Mars are shown.

More information at: http://www.jpl.nasa.gov/news/news.php?feature=4444

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