Trinity Test Fireball (IMAGE) University of California - San Diego Caption This is a frame of the 'Trinity' fireball, .025 seconds after detonation. Credit US Govt. Defense Threat Reduction Agency 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.