Fig13_2 Map of Infant Universe

Fig13_2 Map of Infant Universe

Fig. 13.2 . An all-sky view of the three-degree cosmic microwave background radiation emitted from the universe in its infancy, just 390,000 years after the big bang that occurred 13.7 billion years ago. The data, taken in 2003 from the Wilkinson Microwave Anisotropy Probe, or WMAP for short, are shown here after seven-years of data analysis. The temperature fluctuations range up to 0.0002 K above and below the average value. Darker regions are cooler and lighter ones are hotter. These temperature fluctuations provided the seeds from which galaxies subsequently grew. (Courtesy of the NASA/COBE and NASA/WMAP Science Teams.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University