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SlideshowReport

Structure of the Early Universe

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Description
Structure of the Early Universe
This microwave map of the entire sky, produced from data taken by the Wilkinson Microwave Anisotropy Probe (WMAP),
shows temperature variations in the cosmic microwave background. Red regions are about 0.00003 K warmer than the
average temperature of 2.73 K; blue regions are about 0.00003 K cooler than the average. (Inset) These tiny
temperature fluctuations, observed by BOOMERANG, are related to the large-scale structure of the universe today,
indicating where superclusters and voids grew. The radiation detected to make this map is from a time 380,000 years
after the Big Bang.
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