Gravitational waves have signaled the most massive merging of two black holes yet. The oldest and most distant gravitational waves to ever hit Earth resulted from the collision of two black holes that also created the first intermediate-mass black hole ever discovered.
원문출처 : https://www.cnn.com/2020/09/02/world/massive-black-hole-merger-gravitational-waves-scn-trnd/index.html
원문출처 : https://www.cnn.com/2020/09/02/world/massive-black-hole-merger-gravitational-waves-scn-trnd/index.html