Sci-fi loves a multiverse. Everyone from Rick and Morty to Spider-Man has stepped through a portal and met their alter egos. My personal favorite use of this trope comes from the sitcom Community, ...

Visiting the Mirror Universe is a decades-old 'Star Trek' tradition that 'Starfleet Academy' would be foolish to ignore. Here's why.

Large language models (LLMs), the computational models underpinning the functioning of ChatGPT, Gemini and other widely used ...

Our existence rests on a razor‑thin imbalance in the early cosmos. When the universe was young, matter and antimatter should ...