It photographed the full sky one and one-half times over the course of its 14-month mission.
It was decommissioned on February 17, 2011, after a 10-month (cool) mission using its hydrogen coolant followed by a four-month secondary (warm) mission after the coolant ran out. The cryogenic coolant allows many of the instruments onboard to operate.
In all, over 2.7 million images were taken by WISE, including 154,000 objects within our Solar System and over 33,500 new asteroids and comets.
Out of these new asteroids and comets, 19 potentially hazardous asteroids (PHA) were discovered.
These asteroids are near-Earth asteroids (NEAs), but in addition are potentially hazardous in that they are more likely to collide with Earth (then NEAs) at some time in the future.
Page two shows where to find these images from NASA's WISE spacecraft.