Christopher Kochanek, Winner of the 2020 Dannie Heineman Prize for Astrophysics (image) American Institute of Physics Share Print E-Mail Caption Christopher Kochanek, winner of the 2020 Dannie Heineman Prize for Astrophysics. Credit Kevin Grady (Radcliffe Institute) Usage Restrictions Journalists may use this image only with appropriate credit. 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.