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 wouldn ...

Time travel has long been a topic of science fiction, filled with thrilling possibilities and mind-bending problems. The most famous of these problems is the "grandfather paradox". If someone travels ...

If traveling into the past is possible, one way to do it might be sending people through tunnels in space. by raggio5 via Pixabay Have you ever dreamed of traveling through time, like characters do in ...