The 5 biggest physics questions that LIGO’s reboot could soon answer

LIGO workers
An extensive upgrade has made LIGO more sensitive than ever

Nutsinee Kijbunchoo/ANU/LIGO Hanford

THE search for gravitational waves is back on, and this time we are expecting a deluge.

The Laser Interferometer Gravitational-Wave Observatory (LIGO) in the US made a huge splash in 2016, when it announced the detection of faint ripples in space-time produced by the collision of a pair of black holes. It has since spotted 10 more gravitational-wave events. Now, following upgrades, LIGO should see one a week when it starts up again on 1 April.

“We’re making the transition from having a slow drip of events to opening the faucet,” says Luis Lehner …

Article amended on 29 March 2019

We clarified that looking for spin alignment is one way to find out what brings black holes together

https://www.newscientist.com/article/mg24132234-200-the-5-biggest-physics-questions-that-ligos-reboot-could-soon-answer/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home

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