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Wilkinson Microwave Anisotropy Probe

(WMAP, Microwave Anisotropy Probe, MAP, Explorer 80)
(spacecraft measuring 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 is still active (July 2013), located at the L2 Earth/Sun Lagrangian point. 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 2011.

WMAPWMAP J184840+3223Wilkinson Microwave Anisotropy Proberadio source

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