Earth,' premiered Aug. 12, 2025, and premieres new episodes weekly. Here's everything to know about when 'Alien: Earth' episodes are released and how many episodes there are.

The "Alien" franchise gets an exciting new entry in its first TV series, "Alien: Earth," which explores life on our planet in the context of the hunt for xenomorphs to study and weaponize. The franchise's timeline has become increasingly confusing since the initial film was released in the late 1970s.

The newborn form of the Xenomorph, and its third sage of life, is the Chestburster. It's an infant alien that violently kills its host by erupting from the host's chest. Soon after emerging, a Chestburster will cocoon itself and grow to its full size as a Xenomorph.