Third black hole crash expands LIGO frontier

An artist’s conception shows two merging black holes similar to those detected by LIGO. (LIGO / Caltech / MIT / Sonoma State Illustration / Aurore Simonnet)

The Laser Interferometer Gravitational-wave Observatory has detected its third confirmed black hole merger, and this one’s a doozy: LIGO’s latest discovery is about 3 billion light-years away, which is more than twice as far away as the first two finds.

The gravitational wave signature of the newly reported smash-up, known as GW170104, also confirms that there’s a heavyweight class for stellar-mass black holes.

“It clearly establishes a new population of black holes that were not known before LIGO,” said Bangalore Sathyaprakash, a physicist at Penn State and Cardiff University.

Get the full story on GeekWire.

About Alan Boyle

Aerospace and science editor for GeekWire, creator of Cosmic Log, author of "The Case for Pluto: How a Little Planet Made a Big Difference," president of the Council for the Advancement of Science Writing. Check out "About Alan Boyle" for more fun facts.
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