Supernova (IMAGE) American Friends of Tel Aviv University Caption One of ten supernovas in the Subaru Deep Field, which exploded 10 billion years ago. Credit Image courtesy of Tel Aviv University 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.