... perhaps now been made easier, as less than half a second later, the Gamma-ray Burst Monitor (GBM) on NASA's Fermi Gamma-ray Space Telescope identified a brief, weak burst of high-energy light originating from the same part of the sky. Black...
... merger. Indeed, just 0.4s after GW 150914 was detected, observations with Fermi’s Gamma-ray Burst Monitor (GBM) revealed the presence of a weak short-duration gamma-ray burst (GRB) event with a false alarm probability of 0.0022. Its localisation was...