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Wilkinson Microwave Anisotropy Probe

(WMAP, Microwave Anisotropy Probe, MAP, Explorer 80)
(spacecraft that measured variations in the cosmic background radiation)

The Wilkinson Microwave Anisotropy Probe (WMAP) is a spacecraft measuring variations (anisotropy) in the cosmic microwave background. WMAP was launched in 2001 and active through 2010, located at the L2 Earth/Sun Lagrangian point. In 2010 it was moved out of the way and turned off. WMAP data is used for cosmology research. COBE had the same mission earlier, but to less detail, and Planck is a newer similar mission.

Results were released on two-year intervals, the first (WMAP1) released in 2005 with a year's data, through the final 9-year results (WMAP9) released in 2012.

WMAPWMAP J184840+3223Wilkinson Microwave Anisotropy Proberadio source

Referenced by:
Bolshoi simulation
cold spot
dark flow
Goddard Space Flight Center (GSFC)
Lagrangian point