The Universe may not have begun with a Big Bang, but instead with a Big Bounce, according to a new theory about how the ...

The biggest explosion seen in the universe has been found. This record-breaking, gargantuan eruption came from a black hole in a distant galaxy cluster hundreds of millions of light years away.

Astronomers observed the fading light of supernova SN 2025kg, which followed the fast X-ray transient (FXT) named EP 250108a.

Astronomers have re-examined the biggest explosion ever seen, possibly the most massive explosion since the Big Bang, to learn more about mysterious blasts of high-energy called gamma-ray bursts (GRBs ...

At the heart of the Milky Way, just 27,000 light-years from Earth, there is a supermassive black hole with a mass of more ...

A giant star that is still being consumed by a supermassive black hole may have caused the largest flare of its kind ever seen, astronomers say.

So much happened in the earliest moments of the universe. Elementary particles appeared, the first nuclei of hydrogen and ...

The biggest objects in the universe are clusters of galaxies, such as the supercluster we live in right now - and including Abell 370, which was captured in a sprawling glittery space-scape by the ...