![]() Unlike its predecessor, WISE is far more powerful. ![]() The WISE mission comes a quarter century after the Infrared Astronomy Satellite made the first all-sky map in infrared wavelength in 1983. ![]() WISE is discovering near-Earth asteroids that are on average larger than what's found by existing telescopes, which should help scientists better calculate their potential threat, said Harvard astronomer Timothy Spahr, who directs the Minor Planet Center. Since the sky survey began, the JPL team has reported the new near-Earth objects to the International Astronomical Union's Minor Planet Center, which keeps track of all small solar system objects. It circles the Earth 300 miles high and takes snapshots every 11 seconds over the whole sky. WISE's 16-inch telescope was built by Utah State University's Space Dynamics Laboratory. ![]() "We're filling in the blanks on everything in the universe from near-Earth objects to forming galaxies," said project scientist Peter Eisenhardt of the NASA Jet Propulsion Laboratory, which is managing the mission. ![]()
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