Sound Waves from the Universe (image) University of Chicago Caption NASA's Wilkinson Microwave Anisotropy Probe collected data that produced this chart of sound waves from the universe. Called a power spectrum, the chart plots the cosmic microwave background radiation as ripples of different sizes across the sky. The data are consistent with predictions of cosmic inflation theory. Credit Courtesy of the WMAP Science Team Usage Restrictions This image may be used by news organization in reports describing the research of John Carlstrom and Scott Dodelson. 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.