Science's 2017 Breakthrough of the Year: The Observation of Two Neutron Stars Merging (image) American Association for the Advancement of Science Share Print E-Mail Caption Artist's concept of the explosive collision of two neutron stars. This material relates to 2017's Breakthrough of the Year by Science News staff in Washington, DC. Credit Illustration by Robin Dienel courtesy of the Carnegie Institution for Science Usage Restrictions Please cite the owner of the material when publishing. This material may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission. 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.