AT2018cow (image) W. M. Keck Observatory Share Print E-Mail Caption An image of AT2018cow and its host galaxy obtained on August 17, 2018 using W. M. Keck Observatory's instrument, the DEep Imaging and Multi-Object Spectrograph (DEIMOS). Credit R. MARGUTTI/W. M. KECK OBSERVATORY 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.