(Viaframe/Stone/Getty Images) Although our Universe appears to be stable, it might just be in a temporary state of false calm ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. The mysteries of a strange era in the universe's history may have been uncovered by scientists. This "epoch of ...

What lies beyond all we can see? The question may seem unanswerable. Nevertheless, some cosmologists have a response: Our universe is a swelling bubble. Outside it, more bubble universes exist, all ...

A staple of Hollywood storytelling, the concept of the multiverse has its roots in serious scientific study. One catch: we don’t know for sure if it exists. However, that explanation gives you a very ...

(via Sabine Hossenfelder) I recently saw a new paper that claims our observations could be better explained if the universe was surrounded by a shell. According to the author, that could do away with ...