Double-Quasar Phenomena
- Year Discovered: 1979
- Location: Ursa Major Constellation
For those unaware, a quasar is a highly active galactic nucleus. Within it, a supermassive black hole, millions to billions of times the mass of the sun, is surrounded by a gaseous accretion disk. Once this disk falls, energy is then released as electromagnetic radiation. The radiation is quite powerful with just one, but two? The Hubble Space Telescope observed a double-quasar phenomenon in 1979, which appears to have been in place from the early universe.