Radiation (IMAGE) Lancaster University Caption Black Hole-Powered Jet of Electrons and Sub-Atomic Particles Streaming From Centre of Galaxy M87; the blue light is Synchrotron radiation which should produce radiation reaction. Credit NASA and The Hubble Heritage Team (STScI/AURA) Usage Restrictions No restrictions. License Public Domain 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.