 |  WISE, NASA’s infrared surveyor
 14 December 2009
After a series of delays, NASA’s Wide-field Infrared Survey Explorer (WISE) began its
mission. WISE’s launch from Vandenberg Air Force Base in California was initially delayed
because of a scheduling conflict with a satellite launch on the East Coast, then twice pushed
back due to an anomaly in a steering engine on its booster rocket. It was launched into a 525 km sun-
synchronous orbit. WISE was a 6-month mission that surveyed the whole sky (hundreds of millions of
object) at infra-red wavelengths. Over its mission, the satellite was expected to take 1.5 millions of
pictures covering the entire sky.
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