If you think a galaxy is big, compare it to the size of the universe: it's just a tiny dot which, together with a huge number ...

Astronomers have discovered what is claimed to be the oldest confirmed black hole in the universe, providing a glimpse into the early stages of cosmic history when the universe was only 3% of its ...

Mapping the Universe’s vast structure no longer requires endless supercomputer time. Effort.jl brings cosmic modeling to laptops without sacrificing accuracy.

The James Webb Space Telescope has found a lonely black hole in the early universe that’s as heavy as 50 million suns. A ...

For scientists, that has long posed a problem: According to physicists’ best current theories, matter and its counterpart, ...

New computer simulations suggest the first magnetic fields that emerged after the Big Bang were much weaker than expected — ...

Astronomers have discovered "dust-shrouded supermassive black holes" in the early universe, less than 1 billion years after ...