Data from South Pole Telescope (image) University of California - Berkeley Caption The South Pole Telescope recorded temperature fluctuations in the cosmic microwave background, the light left over from the Big Bang, to study the period of cosmological evolution when the first stars and galaxies formed early in the history of the universe. The image, only a third of which was used for the current analysis, shows variations in millionths of a degree Kelvin. Credit South Pole Telescope Collaboration Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.