Chapter

Black Holes and Galaxies
This podcast discusses the relationship between black holes and galaxies, detailing how at some stages in their lives, black holes go through a phase of capturing gas, becoming extremely bright, and settling towards the center of their respective galaxies.
Clips
Most galaxies have a black hole in them, but for the rest of their lives, black holes are fairly quiescent because there's not much gas falling into them.
1:41:22 - 1:43:08 (01:45)
Summary
Most galaxies have a black hole in them, but for the rest of their lives, black holes are fairly quiescent because there's not much gas falling into them.
ChapterBlack Holes and Galaxies
Episode#305 – Martin Rees: Black Holes, Alien Life, Dark Matter, and the Big Bang
PodcastLex Fridman Podcast
The Andromeda Galaxy, which is the biggest galaxy near us, will collide with the Milky Way in 4 billion years, but the black holes within these galaxies will settle towards the center without affecting our descendants.
1:43:08 - 1:45:53 (02:45)
Summary
The Andromeda Galaxy, which is the biggest galaxy near us, will collide with the Milky Way in 4 billion years, but the black holes within these galaxies will settle towards the center without affecting our descendants.