A small number of primordial black holes that went speeding through the universe just moments after the Big Bang may have been captured by stars — and these ancient black holes may still lurk in those stars' hearts today, new research theorizes.
Detecting these hypothetical black holes — which would have formed as hot, dense clumps of matter that collapsed in the first second after the universe's birth — could help nail down theories about the early universe and black hole formation. However, finding the small fraction of stars that managed to snag a fast-moving black hole poses some challenges, the study authors said.
