Kepler Field (IMAGE) University of California - Berkeley Caption NASA's Kepler spacecraft observed 150,000 stars within a field in the constellation Cygnus. Credit Erik Petigura, UC Berkeley Usage Restrictions None License Licensed content 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.