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: 2) by Runaway1956 on Thursday September 28 2017, @02:40PM
"more than a MONTH ago"
Probably, yes.
"located about 1.8 billion light-years away."
I don't know how fast gravity waves travel, but it seems that it actually happened at least a billion years ago. So, yes, old news for sure.