Did stars or black holes form first?
Ava Hall
Published May 11, 2026
The black holes came first, Christopher Carilli used radio telescopes to study four host galaxies bearing black holes from about 12 billion years ago, when the universe was only about a billion years old.
Do black holes start as stars?
One Star's End is a Black Hole's BeginningMost black holes form from the remnants of a large star that dies in a supernova explosion. (Smaller stars become dense neutron stars, which are not massive enough to trap light.)