The Antarctic Impulsive Transient Antenna (ANITA) is a NASA project which uses equipment to monitor particles known as ...

A theory holds that dark matter could be involved in a mirror universe and that runs backwards before the Big Bang.

While no evidence of a parallel universe has been found, that doesn't mean the idea is off the table. Several scientific theories, such as cosmic inflation, suggest the possibility of a multiverse ...

While parallel universes are a staple of science fiction, there are some real scientific theories to support them. But if parallel universes do exist, could we ever travel to them? It certainly ...