Crab Pulsar Emitting Light Energy (IMAGE) U.S. National Science Foundation Caption The Crab Pulsar emits light energy above one hundred thousand million electron volts. Credit David A. Aguilar (CfA) / NASA / ESA José Francisco Salgado, Adler Planetarium. Based on images by M SubbaRao, S Criswell, B Humensky, and JF Salgado. Usage Restrictions None License Licensed 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.