Astronomers discover ‘monster’ quasar from early universe

Astronomers discover ‘monster’ quasar from early universe
Astronomers have discovered the most massive quasar known in the early universe, containing a monster black hole with a mass equivalent to 1.5 billion suns. Formally designated as J1007+2115, the newly discovered quasar is one of only two known from the same cosmological period. Quasars are the most energetic objects in the universe, and since their discovery, astronomers have been keen to determine when they first appeared in our cosmic history.
phys.org
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