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Full-sky Map Of The Oldest Light In The Universe

Spacecraft:  Wilkinson Microwave Anisotropy Probe
Produced by:  NASA/WMAP Science Team
Copyright: NASA Copyright Free Policy
Date Released: 12 February 2003

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This full-sky cosmic map captures the afterglow of the Big Bang, called the cosmic microwave background. It is a map of the oldest light in the universe: a "baby picture" of the universe. The picture was captured by scientists using NASA's Wilkinson Microwave Anisotropy Probe (WMAP) during a sweeping 12-month observation of the entire sky. Colors indicate "warmer" (red) and "cooler" (blue) spots. The oval shape is a projection to display the whole sky; similar to the way the globe of the earth can be represented as an oval.

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