1 00:00:00,000 --> 00:00:07,000 [Visualization of orbiting supermassive black holes with accretion disks] 2 00:00:07,000 --> 00:00:14,000 [Music throughout] 3 00:00:14,000 --> 00:00:18,000 4 00:00:18,000 --> 00:00:22,000 5 00:00:22,000 --> 00:00:26,000 6 00:00:26,000 --> 00:00:30,000 7 00:00:30,000 --> 00:00:34,000 8 00:00:34,000 --> 00:00:38,000 9 00:00:38,000 --> 00:00:42,000 10 00:00:42,000 --> 00:00:46,000 11 00:00:46,000 --> 00:00:50,000 12 00:00:50,000 --> 00:00:54,000 13 00:00:54,000 --> 00:00:58,000 14 00:00:58,000 --> 00:01:02,000 15 00:01:02,000 --> 00:01:06,000 16 00:01:06,000 --> 00:01:10,000 17 00:01:10,000 --> 00:01:14,000 18 00:01:14,000 --> 00:01:18,000 19 00:01:18,000 --> 00:01:23,000 [Extreme gravitational lensing produces light rings around each black hole.] 20 00:01:23,000 --> 00:01:30,000 [Light deflected by roughly 90 degrees forms an edge-on image of the companion black hole, which rotates as the objects orbit.] 21 00:01:30,000 --> 00:01:37,000 [Gravitational forces and the effects of relativity distort the light rings into rotating ovals instead of perfect circles.] 22 00:01:37,000 --> 00:01:44,000 23 00:01:44,000 --> 00:01:51,000 24 00:01:51,000 --> 00:01:58,000 25 00:01:58,000 --> 00:02:05,000 [Looking closer, multiple images of each accretion disk appear, each produced by light deflecting back and forth between the two black holes.] 26 00:02:05,000 --> 00:02:12,000 27 00:02:12,000 --> 00:02:19,000 28 00:02:19,000 --> 00:02:21,000 29 00:02:21,000 --> 00:02:26,000 [The effects of relativity cause the black holes to appear smaller and brighter as they approach the camera…] 30 00:02:26,000 --> 00:02:31,000 […and larger yet fainter as they recede.] 31 00:02:31,000 --> 00:02:47,000 32 00:02:47,000 --> 00:02:54,000 33 00:02:54,000 --> 00:03:01,000 34 00:03:01,000 --> 00:03:05,000 35 00:03:05,000 --> 00:03:10,741 [NASA]