(Phys.org) —Like our Milky Way, every known large galaxy has at its center a supermassive black hole, some of which are surrounded by a super-bright disk of hot gas called a quasar—but now a research team that includes ...
Astronomy
Nov 8, 2013
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Deep-space missions require precise navigation, in particular when approaching bodies such as Mars, Venus or a comet. How precise?
Astronomy
Oct 2, 2013
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For the first time, astronomers have seen the image of a distant quasar split into multiple images by the effects of a cloud of ionized gas in our own Milky Way Galaxy. Such events were predicted as early as 1970, but the ...
Astronomy
Aug 28, 2013
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(Phys.org) —Astronomers using the NASA/ESA Hubble Space Telescope have solved the 40-year-old mystery of the origin of the Magellanic Stream, a long ribbon of gas stretching nearly halfway around the Milky Way. New Hubble ...
Astronomy
Aug 8, 2013
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(Phys.org) —Quasars are active black holes—primarily from the early universe. Using a special method where you observe light that has been bent by gravity on its way through the universe, a group of physics students from ...
Astronomy
Aug 7, 2013
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An international team led by the University of New South Wales has studied a distant star where gravity is more than 30,000 times greater than on Earth to test its controversial theory that one of the constants of Nature ...
General Physics
Jul 4, 2013
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(Phys.org) —An international team of astronomers may have found a new way to map quasars, the energetic and luminous central regions typically found in distant galaxies. Team leader Prof. Andy Lawrence of the Royal Observatory ...
Astronomy
Jul 1, 2013
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The University of Colorado Boulder has become a full institutional member of the Sloan Digital Sky Survey-IV, an ambitious effort by some of the world's top astronomers to map the celestial sky in three dimensions to learn ...
Space Exploration
Jun 26, 2013
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(Phys.org) —In the nearly six decades since quasars were discovered, the list of these energetic galaxies powered by supermassive black holes has grown to more than 100,000 – enough examples to reveal important information ...
Astronomy
Apr 18, 2013
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University of Colorado Boulder astronomers targeting one of the brightest quasars glowing in the universe some 11 billion years ago say "sideline quasars" likely teamed up with it to heat abundant helium gas billions of years ...
Astronomy
Mar 21, 2013
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