Scientists discover the biggest explosion ever seen in the universe! The blast came from a supermassive black hole located in the Ophiuchus galaxy cluster. Not only that but the explosion was five times more explosive than the previous record holder! It was so powerful that it punched a cavity in the cluster plasma1. Credit: X-ray: NASA/CXC/Naval Research Lab/Giacintucci, S.; XMM:ESA/XMM; Radio: NCRA/TIFR/GMRTN; Infrared: 2MASS/UMass/IPAC-Caltech/NASA/NSF The lead author of the study Dr. Simona Giacintucci, from the Naval Research Laboratory in the United States, compared the blast to Mount St. Helens volcano eruption in the 1980s. The volcano was so fierce that it blew the top off the volcano. Similarly, with the explosion in the Ophiuchus galaxy cluster, it blew a hole so wide that it could fit 15 Milky Way galaxies in a row! Professor Johnston-Hollitt said the cavity in the plasma...