Called Olbers’ paradox, the seemingly simple mystery of the sky’s darkness is something that stumped astronomers for ...

It all started with a Big Bang – and now scientists are on a quest to unravel the mystery behind the birth of the universe.

The Epoch of Reionization — the universe’s last major transition — may have happened earlier than previously thought.

Peculiar James Webb Space Telescope observations seem to show gargantuan black holes in the earliest moments of the universe.

For a long time, astronomers believed galaxy formation followed a very specific model: cosmic gas collects in clumps, stars ...

In an underground lab in a mountainous region of Italy that contains the coldest temperatures known to exist in the universe, ...

"The results we are obtaining are truly unexpected, and all point to a super Eddington-type growth mechanism for black holes.

In the early Universe, long before they should have had time to grow, astronomers have found what they're calling 'red ...

The James Webb Space Telescope (JWST) has discovered three massive galaxies, dubbed "red monsters," that challenge current ...

The James Webb Space Telescope has captured images of galaxies from a time when the Universe was less than a billion years ...

The universe might have had a "secret life" before the Big Bang, a recent study has proposed ... In an email, he told Live Science. "Weighing more or less the mass of an asteroid, they could ...