NASA Caught A Glimpse Of Where Those Gravity Waves Came From
NASA says it detected high-energy radiation that probably came from the collision of two black holes.By Evan Thomas | April 19, 2016
They weren't sure where the waves originated when they made the announcement in February, but NASA's Fermi gamma-ray telescope measured a burst of unusual activity less than a second after sensors on Earth detected the gravity waves. The signals came from the same area of the sky.
But the burst came in from an odd angle, which made it hard to get an exact location. It was like Fermi saw something out of the corner of its eye.