Ask Ethan: Does A Time-Stopping Paradox Prevent Black Holes From Growing?
Every Milky Way-sized galaxy should contain hundreds of millions of black holes, formed mostly from the deaths of the most massive stars. At the centers of these galaxies, supermassive black holes have devoured enough matter to grow to millions or billions of times the Sun's mass, where sometimes …
Kalind Cory Carpenter flipped this story into physics•1538d