Supernova Discovery Challenges Known Theories of the Death of Stars (image) W. M. Keck Observatory Share Print E-Mail Caption This is an artist's impression of a supernova. Credit NASA/ESA/G. BACON (STSci) Usage Restrictions None Share Print E-Mail 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.