Big Bang Theory: The latest science and discoveries
Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at: community@space.com.
Latest about big bang theory

What happened before the Big Bang?
By Paul Sutter last updated
The Big Bounce theory was once thought impossible. But recent research is keeping it alive.

The history of the universe: Big Bang to now in 10 easy steps
By Denise Chow, Scott Dutfield published
Reference Learn about the Big Bang theory and the evolution of the universe in ten steps.

What is the cosmic microwave background?
By Elizabeth Howell, Daisy Dobrijevic published
Reference The cosmic microwave background (CMB) is primeval radiation emitted shortly after the Big Bang. Regarded as an 'echo' of the Big Bang, CMB fills the universe.

Inside All About Space issue 126: Complete guide to exoplanets
By Daisy Dobrijevic published
Inside the latest issue of All About Space is our complete guide to exoplanets where we peer into the most extreme alien worlds and hunt for Earth 2.0.

Do we live in a simulation? The problem with this mind-bending hypothesis.
By Paul Sutter published
Does the simulation hypothesis offer a compelling argument, or is it just interesting food for thought? Let's find out.

10 wild theories about the universe
By How It Works magazine, Andrew May last updated
Why is the universe the way it is? Over the years, scientists have explored many ways to explain the cosmos, leading to some crazy-sounding ideas.

Here's how the universe could end in a 'false vacuum decay'
By Paul Sutter published
The world could end not with a bang, but with a quantum vacuum decay of the ground state of the universe to its true minimum.

Some supermassive black holes may contain fingerprints from the Big Bang
By Paul Sutter published
The elements around some giant black holes may be subtly different from the cosmic average, retaining a relic memory of the young universe.
Get the Space.com Newsletter
Breaking space news, the latest updates on rocket launches, skywatching events and more!