Two weeks in pictures: December 22, 2012–January 4, 2013

In the past 14 days, WMAP scientists released final results on the infant universe, a surprise pancake structure in the Andromeda Galaxy upends galactic understanding, astronomers mapped the enormous outflows of charged particles from the center of our galaxy, and more.

Published: January 4, 2013

December 22, 2012–January 4, 2013

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NASA/WMAP Science Team

WMAP releases final results on the infant universe

Based on this data, cosmologists finally know precise values for the history, composition, and geometry of the cosmos. Learn more »

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