Keir Rogers (IMAGE) University of Toronto Caption Keir Rogers, lead author of the study and Dunlap Fellow at the Dunlap Institute for Astronomy & Astrophysics Credit Courtesy Keir Rogers Usage Restrictions For editorial use License Original 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.