Earth” ends with a five-star, no-notes needle drop (or choice of a pre-existing song). A tone of dread has been set throughout the episode, in which we learn that corporations, technology, and military rule in this future world.

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.