active galaxies

Radio image of the galaxy PGC 064440 shows it had jets of matter streaming away from it (long lines) in the past. Eventually the jets stopped, and the material is flowing back to the galaxy, but then gets pushed away to form the shorter arms of the X.
The ghost of an angry black hole still haunts this galaxy
Phil Plait
Sep 3, 2020
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Tag: Spitzer Space Telescope
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How to make a blazar: Slam two galaxies together and watch them feed a huge black hole
Phil Plait
Aug 13, 2020
Artist drawing of a blazar, a galaxy with a supermassive black hole spewing out energy. Credit: DESY, Science Communication Lab
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The nearby supernova no one saw
Phil Plait
Jul 31, 2020
A Hubble image of the Circinus Galaxy taken in 1999, after SN1996cr exploded but before it was discovered, with an arrow representing the approximate location of the supernova. The red glow is from hydrogen.
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Merging black holes blast out light… but not for the reason you'd think
Phil Plait
Jun 29, 2020
A binary pair of black holes about to merge together, near the huge disk of material swirling around a supermassive black hole in a distant active galaxy. Credit: Caltech/R. Hurt (IPAC)
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A binary quasar caught by accident!
Phil Plait
Jun 17, 2020
Artwork depicting binary quasars, two actively galaxies orbiting one another. Credit: NASA/ESA/Hubble/ESO/M. Kornmesser, adapted by Phil Plait
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Quarter-million-light-year long threads in an active galaxy have astronomers… engaged
Phil Plait
Jun 10, 2020
The active galaxy ESO 137-006 is sending out two beams of matter that puff up at the ends and emit radio waves. They appear to be connected by several narrow threads of gas, the origin of which is unclear. The galaxy itself is the dot in the center. Credi
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A huge black hole eats a huger black hole's dinner then explodes with the light of a trillion suns
Phil Plait
May 11, 2020
Artwork (not to scale) depicting the binary black hole in the heart of the blazar OJ 287. The less massive black hole plunges through the accretion disk around the more massive black hole, creating a huge bubble of superheated gas. Credit: NASA/JPL-Caltec
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Down the mouth of a monster: Event Horizon Telescope stares down a blazar's jet
Phil Plait
Apr 8, 2020
Artist drawing of a blazar, a galaxy with a supermassive black hole spewing out energy. Credit: DESY, Science Communication Lab
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Record-breaking blazar found 12.8 *billion* light years from Earth
Phil Plait
Mar 9, 2020
Artist drawing of a blazar, a galaxy with a supermassive black hole spewing out energy. Credit: DESY, Science Communication Lab
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In dwarf galaxies, a black hole wind is rising
Phil Plait
Jan 27, 2020
Black hole with accretion disk and jets
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The wind from a galaxy's supermassive black hole helps make stars… in other galaxies
Phil Plait
Nov 27, 2019
Artist drawing of a blazar, a galaxy with a supermassive black hole spewing out energy. Credit: DESY, Science Communication Lab
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Astronomers spot a massive doughnut of material around quasar Cygnus A’s supermassive black hole
Phil Plait
Apr 3, 2019
Cygnus A
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A quasar at the edge of the observable Universe shines with the light of 10 *trillion* Suns
Phil Plait
Jan 18, 2019
The quasar J043947.08+163415.7 (red) is extremely far away, and its light has been amplified by an intervening galaxy (blue) much closer to Earth. Credit: NASA, ESA, and X. Fan (University of Arizona)
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News: Monster black holes shoot out neutrinos like cosmic bullets
Phil Plait
Jul 12, 2018
Artist drawing of a blazar, a galaxy with a supermassive black hole spewing out energy. Credit: DESY, Science Communication Lab
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Ring(s) around the black hole
Phil Plait
Feb 15, 2018
Hubble image of the magnificent spiral galaxy M 77. Credit: NASA, ESA & A. van der Hoeven
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A gigantic black hole finds its long-lost, and slightly less gigantic, sibling
Phil Plait
Jun 21, 2017
black holes
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