Recent discoveries have reignited excitement and curiosity in the scientific community, suggesting the possible existence of ...

String theory is perhaps the most high-profile candidate for what physicists call a theory of everything – a single ...

In one new theory, it is possible that dark matter exists in a mirror universe where there are only dark versions of forces ...

The idea of multiple universes actually dates back to the Ancient Greeks like Democritus, or even earlier to pre-Socratic philosopher Anaximander and his idea of infinite worlds, but today ...

A new theory published late last year is offering an explanation as to why our universe is expanding at an accelerating rate: Merging with "baby" universes.

A new theory suggests that “time” might be the product of a universe that, long ago, decided to settle down into one ...

Scientists continue to find evidence that supports the multiverse theory, and we're closer than ever to properly proving it.

There may be another universe just a millimeter away from ours, hovering in an extra, hidden dimension. At any moment this second universe (or “membrane,” in M-theory—a relative of ...

Physicists have taken a bold step beyond Einstein's special theory of relativity, proposing an expansion of special relativity that includes observers moving faster than light. This fresh ...

Forget one Big Bang — try many. A bold new theory pokes holes in the popular origin story, suggesting the universe evolves through a series of lightning-fast bursts, rewriting what we know about ...

Studies of the , the afterglow of the Big Bang, have revealed that our universe is experiencing accelerated expansion. For this observation to fit with the main theory of cosmic evolution ...