LIGO resumes work in 2023 with gravitational wave upgrades - Space.com

The gravitational wave detector will be able to spot neutron star mergers as distant as 620 million light-years away.

Following two years of upgrades, the Laser Interferometer Gravitational-Wave Observatory (LIGO) is almost ready for its next operating run, which is set to begin in March 2023.  During this fourth o… [+3709 chars]

full article...