00:00 There's an invisible giant monster on the loose! It's barreling through intergalactic space,
00:06 fast enough to travel from Earth to the Moon in 14 minutes. But don't worry,
00:11 luckily this beast is very, very far away. This potential supermassive black hole,
00:18 weighing as much as 20 million suns, has left behind a never-before-seen 200,000 light-year-long
00:25 trail of newborn stars. The streamer is twice the diameter of our Milky Way galaxy.
00:32 It's likely the result of a rare, bizarre game of galactic billiards among three massive black holes.
00:38 Astronomers suspect that first two galaxies merged perhaps 50 million years ago.
00:44 That brought together two supermassive black holes at their centers.
00:49 They whirled around each other until another galaxy came along with its own supermassive
00:54 black hole. The three of them chaotically orbited around each other. This unstable
00:59 configuration couldn't last, and eventually one of them was violently flung out of the host galaxy.
01:05 Rather than gobbling up stars ahead of it, this speedy black hole is plowing into gas
01:10 in front of it to trigger new star formation along a narrow corridor.
01:15 The next step is to do follow-up observations with NASA's James Webb Space Telescope
01:21 and the Chandra X-ray Observatory. Also, NASA's upcoming Nancy Grace Roman Space Telescope will
01:28 have a wide-angle view of the universe with Hubble's high resolution. As a survey telescope,
01:34 the Roman observations might find more of these rare and improbable events elsewhere in the
01:40 universe. Hubble, once again showing us that the universe is full of fascinating phenomena.
01:47 [MUSIC]
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