A team of researchers affiliated with several institutions in the U.S. along with one in India and one in Hungary has created simulations that could explain how larger than expected black holes could form near supermassive ...
When two galaxies merge, there are brief periods of stellar baby booms. A group of astronomers led by Lingyu Wang (SRON Netherlands Institute for Space Research) has now used a sample of over 200,000 galaxies to confirm that ...
Astronomy
Oct 21, 2019
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Over 30 years ago, the Infrared Astronomy Satellite discovered that the universe contained many extremely luminous galaxies, some more than a thousand times brighter than our own Milky Way, but which are practically invisible ...
Astronomy
Aug 19, 2019
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Three images from NASA's Spitzer Space Telescope show pairs of galaxies on the cusp of cosmic consolidations. Though the galaxies appear separate now, gravity is pulling them together, and soon they will combine to form new, ...
Astronomy
Feb 27, 2019
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Today, at the 233rd AAS meeting in Seattle, astronomers from the Sloan Digital Sky Survey (SDSS) announce that they have developed a new tool to find otherwise-hidden galaxy mergers in data from the Mapping Nearby Galaxies ...
Astronomy
Jan 9, 2019
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87
Galaxy mergers—in which two galaxies join together over billions of years in sometimes-dramatic bursts of light—aren't always easy for astronomers to spot. Now, scientists from the University of Colorado Boulder have ...
Astronomy
Jan 8, 2019
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209
Some 10 billion years ago, the Milky Way merged with a large galaxy. The stars from this partner, named Gaia-Enceladus, make up most of the Milky Way's halo and also shaped its thick disk, giving it its inflated form. A description ...
Astronomy
Oct 31, 2018
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Two of the closest galaxies to the Milky Way—the Large and Small Magellanic Clouds—may have had a third companion, astronomers believe.
Astronomy
Sep 18, 2018
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Calvin College professor of astronomy Larry Molnar made a bold announcement in 2017—he and his team had identified a binary star in the constellation Cygnus, the Swan, that was a strong candidate to merge and explode in ...
Astronomy
Sep 10, 2018
3
253
GW170817 is the name given to a gravitational wave signal seen by the LIGO and Virgo detectors on 17 August 2017. Lasting for about 100 seconds, the signal was produced by the merger of two neutron stars. The observation ...
Astronomy
Aug 6, 2018
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