For the first time three gravitational wave detectors have recorded the same event. The detection was made by both LIGO and Advanced Virgo (which has just recently begun collecting data for the first time). From the news release:
The LIGO Scientific Collaboration and the Virgo collaboration report the first joint detection of gravitational waves with both the LIGO and Virgo detectors. This is the fourth announced detection of a binary black hole system and the first significant gravitational-wave signal recorded by the Virgo detector, and highlights the scientific potential of a three-detector network of gravitational-wave detectors.
The three-detector observation was made on August 14, 2017 at 10:30:43 UTC. The two Laser Interferometer Gravitational-Wave Observatory (LIGO) detectors, located in Livingston, Louisiana, and Hanford, Washington, and funded by the National Science Foundation (NSF), and the Virgo detector, located near Pisa, Italy, detected a transient gravitational-wave signal produced by the coalescence of two stellar mass black holes.
A paper about the event, known as GW170814, has been accepted for publication in the journal Physical Review Letters.
(Score: 0) by Anonymous Coward on Thursday September 28 2017, @06:58AM (3 children)
Aristarcus?
(Score: 2) by aristarchus on Thursday September 28 2017, @07:18AM (2 children)
Look, AC, you have to spell the name correctly. Then you have to say it three times! Betelgeuse, Betelgeuse, it may have already gone supernova, you know, with enough energy to destroy all life on earth. Just it takes several thousand years for it's light to get to us!
Spell the name correctly. It will kill you irregardless, but protocol and decency demands getting the details right. My name is aristarchus. No initial cap. Born on the isle of Samos. Educated and taught in Alexandria. Know with whom you are dealing, or I shall have to say, "Shit, Shit, " Will this call you forth, AC? Do we dare make the experiment?
(Score: 2) by Runaway1956 on Thursday September 28 2017, @02:47PM
Beetlejuice?
(Score: 2, Informative) by Anonymous Coward on Thursday September 28 2017, @05:39PM
This article is about gravitational waves, part of GR theory. There is no precise way to calculate mass in GR:
https://en.m.wikipedia.org/wiki/Mass_in_general_relativity [wikipedia.org]