Cosmology and quantum physics both offer tantalizing possibilities that we inhabit just one reality among many. But testing ...

In a remote stretch of New Mexico desert, a geometric monument and a cluster of otherworldly rock formations have been recast ...

What if there are other universes, just like ours? With an infinite number of Earths? With uncountable versions of you? And what if we don’t have to look too far to find them? Maybe a mirror version ...

There is quite a bit of time and effort in science fiction spent on parallel universes and the multiverse. We can debate whether they exist. However, as someone interested in politics, I wondered what ...