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

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

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 ...

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

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

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

Theoretical physicist Abhay Ashtekar is famous for having worked on an idea for how space-time itself is generated. So we ...

Our knowledge of physics — gained through astrophysical experiments, or in laboratories via machines such as particle ...

Cosmic strings could also be detectable in the Cosmic Microwave Background (CMB) – the leftover radiation from the Big Bang ...

Astronomers have identified three ultra-massive galaxies -- nearly as massive as the Milky Way -- already in place within the first billion years after the Big Bang. This surprising discovery was made ...

Since the discovery of the acceleration, theorists have calculated that the universe will continue to expand faster and ...

The JWST’s FRESCO program, developed by the team, systematically analyzed emission-line galaxies from the dawn of the ...