One of the most popular science fiction tropes in movies and TV, right up there with time travel and extraterrestrial life, is the idea of parallel universes or alternate universes. The concept of an ...

From 'Discovery' to "Strange New Worlds' via 'Lower Decks' and 'Prodigy', 'Star Trek' is leading the way. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...