LIGO does it again: a second robust binary black hole coalescence observed

This event, dubbed GW151226, was seen on December 26th at 03:38:53 (in Universal Coordinated Time, also known as Greenwich Mean Time), near the end of LIGO's first observing period ("O1"), and was immediately nicknamed "the Boxing Day event".

Ligo Caltech

Ligo Caltech

9 Years ago

Science & Technology LIGO two black signal first