Four Years of NASA NEOWISE Data
This movie shows the progression of NASA's Near-Earth Object Wide-field Survey Explorer (NEOWISE) investigation for the mission's first four years following its restart in December 2013. Green dots represent near-Earth objects. Gray dots represent all other asteroids which are mainly in the main asteroid belt between Mars and Jupiter. Yellow squares represent comets. Image Credit: NASA/JPL-Caltech/PSI
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Jet Propulsion Laboratory, Pasadena, Calif.
NASA Headquarters, Washington