Using the Hubble Space Telescope, astronomers homed in on a quasar called 3C 273, some 2.5 billion light-years from Earth.
Astronomers discovered the first pair of merging quasars from the Cosmic Dawn, 900 million years after the Big Bang.
Data from the Gaia Space Telescope was used to identify quasars, the intensely bright young galaxies fueled by black holes.
The quasar – named J0529-4351 – is both the most luminous object known to date and the fastest-growing black hole currently known.
For the first time, starlight has been detected in galaxies burning brightly with the fury of feeding black holes in the first billion years of the Universe.
Scientists have unlocked one of the biggest mysteries of quasars—the brightest, most powerful objects in the universe—by discovering that they are ignited by galaxies colliding.
Way back in 1979, astronomers discovered that cluster's mass distribution formed a lens that distorted the light. Now EU astronomers have spotted time delaying effect with another distant quasar.
Astronomers have spotted two close pairs of quasars in the process of merging as their host galaxies crash together in a slow-motion collision 10 billion years ago. Quasars make a profound impact on galaxy formation.
Astronomers have discovered the most distant source of radio emission known to date - the quasar, nicknamed P172+18. It is so distant that light from it has travelled for about 13 billion years to reach us.
Astronomers have now found a so-called “cold quasar” in which star formation has managed to continue even in the presence of a ravenous supermassive black hole. The team studied a quasar 5.25 billion light years away.
Scientists using the Hubble Space Telescope have detected quasars sending outbursts of energy roaring through their galaxies, according to new research.
Astronomers have identified six previously mild-mannered galaxies that suddenly transformed into voracious quasars, erupting in feeding frenzies powered by supermassive black holes.
Astronomers from Japan, Taiwan and U.S. have discovered 83 quasars powered by supermassive black holes in the distant universe, from a time when the universe was only 5 percent of its age.
For the first time, an international collaboration of scientists has detected highly energetic light coming from the outermost regions of an unusual star system within our own galaxy.
MIT researchers have found the quasar, PKS 1353-341, is simply so bright it drowns out the light from hundreds of galaxies in a surrounding cluster.
