The newest full trailer for Alien: Earth, released on June 5, 2025, provides a peek into the chilling variety of extraterrestrial species that will be featured in the narrative. Set two years before the events of Ridley Scott’s 1979 Alien, this FX/Hulu series brings the Xenomorph and several new alien lifeforms down to Earth.

Here’s a breakdown of the mysterious creatures revealed in the footage.
1. Xenomorphs
Unsurprisingly, the trailer teases the franchise’s most iconic monsters: the Xenomorphs. Though still largely obscured in shadow, their elongated, skeletal heads and spiky tails are unmistakable. The series marks the first time Xenomorphs appear on Earth, creating an eerie “what if” scenario that shifts the setting from space to our home planet.
2. Facehuggers
One of the more memorable visuals involves the classic facehugger. In several brief but tense moments, the trailer highlights these parasitic creatures, their long legs scrambling as they latch onto human candidates, illustrating urgency and dread.
3. “Gestation Complete” Creature
A disturbing promotional clip titled Gestation Complete delves into the life cycle of an alien species. A recently born creature emerges from sticky membranes, its design nodding to the franchise’s biological horror roots. Its baby form seems both familiar, evoking the Xenomorph aesthetic, and unsettlingly alien, leaving its exact nature ambiguous.
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4. Unidentified Hybrid Species
Hawley’s teasers also mention “five deadly species” arriving via the crash‑landed spacecraft. While not all are shown in detail, there’s a clear implication of variety, suggesting the series will explore a broader ecosystem of alien life beyond the familiar Xenomorph.
The “Crate” trailer even includes a narrator warning that multiple species were contained aboard, implying each brings different biological threats.

5. Potential New Threats in Alien: Earth
Some glimpses hint at additional creatures: quick, shadowy movements in corridor shots suggest less‑seen alien predators. Their sleek, almost insect-like gait could show new evolutionary adaptations, allowing the series to expand the alien mythos with fresh designs.
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What do these details imply for the Alien: Earth series
- A diverse alien ecosystem: Unlike previous films that mostly focused on the Xenomorph Queen or drones, Alien: Earth seems to be building an entire chain of extraterrestrial species.
- Biological horror emphasis: The gestation visuals emphasize the visceral, body-horror aspects that defined the original film, highlighting birth and mutation rather than high-tech evil.
- New timeline, new terrors: Placing the creatures on Earth in the year 2120, underlines the show's positioning as a prequel with fresh world-building. Expect an intersection of corporate intrigue (Weyland‑Yutani, Prodigy, Lynch, etc.) and existential threats in everyday environments.

For long-time fans, the return of Xenomorphs on Earth signals a new tonal layer where humanity faces not just corporate conspiracies, but literal alien monsters in familiar surroundings. The promise of five different alien species could mean several forms of predation, whether parasitic, gestational, or fast-moving, allowing Alien: Earth to explore unfamiliar angles in the larger franchise.
The trailer effectively balances mystery (half-seen aliens, sealed crates, ambiguous gestation) with tension (facehuggers launching, somber dialogue). It establishes that Alien: Earth will expand the universe’s biology, suggesting unforeseen dangers lurking both inside that crashed ship and around the next corner.