A team of astronomers led by the University of Arizona has observed a luminous quasar 13.03 billion light-years from Earth—the most distant quasar discovered to date. Dating back to 670 million years after the Big Bang, ...
Astronomy
Jan 12, 2021
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Quasars are very bright, distant and active supermassive black holes that are millions to billions of times the mass of the Sun. Typically located at the centers of galaxies, they feed on infalling matter and unleash fantastic ...
Astronomy
Jun 23, 2021
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6929
Supermassive black holes, which lurk at the heart of most galaxies, are often described as "beasts" or "monsters". But despite this, they are pretty much invisible. To show that they are there at all, astronomers typically ...
Astronomy
Mar 2, 2018
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490
(Phys.org) -- Astronomers have found strong evidence that a massive black hole is being ejected from its host galaxy at a speed of several million miles per hour. New observations from NASA's Chandra X-ray Observatory suggest ...
Astronomy
Jun 4, 2012
6
0
(PhysOrg.com) -- A team led by UCLA research astronomer Michael Rich has used a unique telescope to discover a previously unknown companion to the nearby galaxy NGC 4449, which is some 12.5 million light years from Earth. ...
Astronomy
Feb 8, 2012
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0
At the heart of almost every sufficiently massive galaxy there is a black hole whose gravitational field, although very intense, affects only a small region around the center of the galaxy. Even though these objects are thousands ...
Astronomy
Jun 9, 2021
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734
An international team of astronomers used a database combining observations from the best telescopes in the world, including the Subaru Telescope, to detect the signal from the active supermassive black holes of dying galaxies ...
Astronomy
May 27, 2022
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656
A unique new instrument, coupled with a powerful telescope and a little help from nature, has given researchers the ability to peer into galactic nurseries at the heart of the young universe.
Astronomy
May 18, 2022
0
875
The Universe is pervaded by a mysterious form of matter, dubbed dark matter, about five times more abundant than the ordinary matter—made of atoms—we are familiar with. Its existence in galaxies was robustly established ...
General Physics
Feb 9, 2015
60
298
Although the universe started out with a bang it quickly evolved to a relatively cool, dark place. After a few hundred thousand years the lights came back on and scientists are still trying to figure out why.
Astronomy
Oct 26, 2016
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