Science
Friday, 7/3, 04:22 AM
A puzzling LIGO signal hints at black holes from the dawn of time
- A gravitational-wave detector picked up a signal that, if real, involved a black hole too small to have formed from a dying star.
- Physicists say the intriguing possibility is a 'primordial' black hole born in the first instant of the universe — a candidate for the dark matter that makes up most of the cosmos.
- But they stress it is a tentative interpretation, not a discovery, and may yet turn out to be noise.