Foundation's new planet, Kalgan, will play a critical role in season 3. Here's what we know from the TV show and Isaac Asimov's books, so far.

Foundation Season 3 is moving into darker, more unpredictable territory, and the arrival of a new villain is at the center of it all.

Fans are thrilled to see the release of the third instalment of this sci-fi hidden gem on Apple TV.