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Associated Press
This  image released on Thursday March 21, 2013 by the European Space Agency (ESA) in Paris shows from left , the evolution of satellites designed to measure ancient light left over from the Big Bang that created our universe 13.8 billion years ago. Called the cosmic microwave background, this light reveals secrets of the universe's origins, fate, ingredients and more. The three panels show 10-square-degree patches of all-sky maps created by space-based missions capable of detecting the cosmic microwave background. The first spacecraft, launched in 1989, is NASA's Cosmic Background Explorer, or COBE on left, the second satellite  the Wilkinson Microwave Anisotropy Probe, or WMAP, centre,  was launched in 2001 and the third satellite  Planck, a European Space Agency mission with significant NASA contributions. was launched in 2009,(AP Photo/ESA Planck Collaboration)

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