M&A in Space: LIGO Detects Possible Black Hole Merger Event

From the Laser Interferometer Gravitational-Wave Observatory's Twitter feed:

Signal in LIGO/Virgo data. Probable candidate two black holes. Observed 3 minutes ago. See more at: https://t.co/al4yGf69IM pic.twitter.com/bnlQs3oXyf

— LIGO (@LIGO) June 30, 2019

More to come.