Scientists say the two black holes merged after colliding at speeds near the limit allowed by Albert Einstein’s theory of ...

The future of at least one of the U.S. LIGO observatories is in jeopardy as deep cuts to science programs are proposed by the ...

Black holes in a pair of merging galaxies, known as UGC4211, are devouring gas and dust that is "being displaced by the ...

What occurs when the universe plays a cosmic curveball, breaking down long-standing assumptions about how black holes form?

Scientists have detected gravitational waves from a black hole collision, revealing one with an unexpected mass that challenges existing theories about star death.