Collisions between stars in the early universe were common, and this could explain the growth of supermassive black holes and ...

Gravitational wave detectors have revealed that black holes frequently collide, in the process merging to produce larger ...

Nov. 6, 2026 After nearly 22 years of exploring the universe’s most violent explosions, NASA’s Swift Observatory has re-entered Earth’s atmosphere over Indonesia. Originally designed to last just two ...

So far, observations by instruments including the James Webb Space Telescope have revealed the presence of surprisingly ...

Black holes sometimes merge. But could 1 split into 2 or more? A new study explores the conditions that might allow it, ...

Johns Hopkins researchers searching the expanse of the universe for the existence of the first black holes are zeroing in on ...

Scientists have discovered a possible loophole in the laws that normally prevent black holes from splitting apart, suggesting that extremely fast-spinning black holes might divide into two. The ...

In our solar system's corner of the galaxy, stars rarely collide. It makes sense: Space is vast, and stars have room to roam.

The giant black holes in the Markarian 501 galaxy complete one orbit in just 121 days. Astronomers have estimated when they might collide.

James Webb observations of Little Red Dots suggest ultra-dense star clusters merging into giant black holes shortly after the ...

After more than two decades of observing some of the universe's most powerful explosions, NASA's Neil Gehrels Swift ...

An apparently modest cosmic explosion produced one of the brightest afterglows astronomers have seen in two decades.