COBE-WMAP Comparison
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COBE-WMAP Comparison

April 4, 2003
An all-sky image of the infant Universe, 380,000 years after the Big Bang. In 1992, NASA's COBE mission first detected tiny temperature fluctuations (shown as color variations) in the infant universe, a landmark discovery. The WMAP image brings the COBE picture into sharp focus. The new, detailed image provides firm answers to age-old questions.

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