WMAP (Wilkinson Microwave Anisotropy Probe)
![This illustration shows NASA’s WMAP spacecraft in shades of blues. The bottom of the satellite is a round circle, like a ballerina’s tutu. Rising from the circle is a bulky, vaguely cylindrical shape topped by two circles facing opposite directions.](https://science.nasa.gov/wp-content/uploads/2023/09/WMAP.png?w=4096&format=png)
An illustration of NASA’s WMAP spacecraft. The colors depicted in this illustration are for artistic purposes only.
NASA
December 20, 2022
Credit | NASA |
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Historical Date | December 20, 2022 |
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An illustration of NASA’s WMAP spacecraft. The colors depicted in this illustration are for artistic purposes only.
WMAP measured temperature differences across the sky in the cosmic microwave background radiation, a remnant of the big bang.
Launched: June 30, 2001
Operations ceased: August 19, 2010