More events needed to pin down gravitational waves backstory | Science News

ADVERTISEMENT

MISSION CRITICAL

Support credible science journalism.

Subscribe to Science News today.


News

More events needed to pin down gravitational waves backstory

Astronomers seek origins of black hole pairs responsible for spacetime ripples

By
7:00am, June 19, 2016
two black holes merging

DUOS’ DANCE   Mergers of two pairs of black holes (illustrated) showcase ability of gravitational waves as a new tool for understanding the universe. LIGO detected gravitational waves from both mergers shown, but at different times and in different parts of the sky. 

SAN DIEGO — While astrophysicists celebrate the second detection of ripples in spacetime (SN Online: 6/15/16), they are also looking ahead to figuring out what led to these cosmic quakes. Black holes colliding in remote galaxies sent the gravitational waves our way. But how these duos ended up in an ill-fated embrace in the first place is unknown.

With only two clear detections from the Advanced Laser Interferometer Gravitational-Wave Observatory, and a third marginal candidate, there isn’t enough information to figure out for sure how these binary black holes formed. But there are two leading ideas.

This article is available only to subscribing members. Join the Society today or Log in.

Get Science News headlines by e-mail.

More on Gravitational waves

From the Nature Index Paid Content