A Hungarian-US team of astronomers have found what appears to be the largest feature in the observable universe: a ring of nine gamma ray bursts – and hence galaxies - 5 billion light years across. The scientists, led by ...
Astronomy
Aug 4, 2015
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607
(Phys.org)—Sometimes when a star collapses into a supernova, it releases an intense, narrow beam of gamma rays. Gamma-ray bursts often last just a few seconds, but during that time they can release as much energy as the ...
In laser facilities in the UK, Imperial physicists are testing an 84-year-old theory which was once thought impossible to prove.
Optics & Photonics
Mar 20, 2018
0
655
(Phys.org) —When a massive star exhausts its fuel, it collapses under its own gravity and produces a black hole, an object so dense that not even light can escape its gravitational grip. According to a new analysis by an ...
Astronomy
May 3, 2013
16
0
(Phys.org) —NASA's Swift satellite reported an enormous explosion occurred this morning at 8.15 AEST in our neighbouring galaxy, Andromeda. This explosion is known as a Gamma Ray Burst (GRB), one of the most powerful explosions ...
Astronomy
May 28, 2014
84
0
On Aug. 17, the Laser Interferometry Gravitational-Wave Observatory (LIGO) detected the fifth fingerprint of a massive disturbance in spacetime since LIGO began operations in September 2015. Unlike the first four sets of ...
Astronomy
Nov 2, 2017
74
3289
It's as if the Earth has closed its eyes, some scientists say: the coronavirus pandemic has forced astronomers in northern Chile to shut down the world's most powerful telescopes, running the risk of missing out on supernovas ...
Astronomy
Jun 12, 2020
0
211
The 'Cow' is not alone; with the help of W. M. Keck Observatory on Maunakea in Hawaii, astronomers have discovered two more like it—the 'Koala' and a similar mysterious bright object called CSS161010. This trio of fast ...
Astronomy
May 26, 2020
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693
Astronomers around the world are captivated by an unusually bright and long-lasting pulse of high-energy radiation that swept over Earth on Sunday, Oct. 9. The emission came from a gamma-ray burst (GRB)—the most powerful ...
Astronomy
Oct 13, 2022
1
1714
While on COVID lockdown, a University of Sydney honours student has written a research paper on a star system dubbed one of the "exotic peacocks of the stellar world".
Astronomy
Oct 12, 2020
1
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