A galaxy known as NGC 6240 is a peculiar, butterfly- or lobster-shaped galaxy consisting of two smaller merging galaxies. NGC 6240 is one of the galaxies included in the sample the team studied. (IMAGE)

University of Massachusetts Amherst

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.