This article was originally published on The Conversation. Read the original article. Scientists have long tried to explain the origin of a mysterious, large and anomalously cold region of the sky. In ...

How can we tell if another universe has collided with our own? Physicists in Canada and the US believe they have the answer – it would leave “a unique and highly characteristic” imprint in the ...

Do we live in a multiverse? Daydreamers and science-fiction authors have pondered parallel universes for as long as scientists have described our own. Our universe contains everything we know — from ...

The theory that our universe is contained inside a bubble, and that multiple alternative universes exist inside their own bubbles – making up the ‘multiverse’ – is, for the first time, being tested by ...

The cosmic microwave background (CMB) is the fingerprint of the Big Bang. This remnant radiation occurs throughout the sky, with a temperature 2.73 degrees above absolute zero (about -454 degrees ...

It's a big universe out there -- maybe bigger that we think. A lot of people these days are contemplating the possibility that the wider world isn't just more of the same; it could be that there are ...