Our own Trace Thurman is currently at SXSW, where a few select scenes from Ridley Scott’s Alien: Covenant were shown off this past weekend. Trace is currently working on an article detailing the footage he saw, so you can expect to read that very soon. In the meantime, there’s a super important reveal made in one of the scenes that we just had to let you know about.

If you want ZERO spoilers, proceed with caution.

Scott recently noted that prequel Alien: Covenant will reveal the true origin of the Xenomorph we first met back in 1979, and one of the clips shown at SXSW divulged that secret info ahead of the film’s May release. At the end of Prometheus, we saw the birth of the “proto-Xenomorph” known as Deacon, but the origin of the actual Xenomorphs is tied directly to android David.

Here’s a brief recap of the scene:

David (Michael Fassbender) is giving Christopher (Billy Crudup) a tour of his workshop, where he’s been working on genetically engineering creatures of his own; he’s become fascinated with these alien creatures in the wake of the events of Prometheus. David shows Christopher a handful of familiar-looking eggs that are part of his process, revealing that he needs a human host in order to complete their birth. That host, of course, is Christopher himself. 

Yes, that means that android David is responsible for literally creating the Xenomorphs. Christopher will later be attacked by a Face Hugger and then give birth to a classic Xeno – footage from that very attack can be seen in the film’s official trailer, corroborating this info.

Pretty crazy, eh?!

Katherine Waterston (Inherent Vice, Jobs, The Babysitters) stars with Michael Fassbender returning as Prometheus‘ android David (and Walter), with a crew that includes Demian Bichir and Danny McBride (“Eastbound and Down”), as well as Alex England (Gods of Egypt), Billy Crudup, Amy Seimetz (A Horrible Way to Die, “The Killing”), Jussie Smollett (“Empire”), Carmen Ejogo, and Callie Hernandez (Machete Kills). James Franco also has a role.

Bound for a remote planet on the far side of the galaxy, the crew of the colony ship Covenant discovers what they think is an uncharted paradise, but is actually a dark, dangerous world — whose sole inhabitant is the “synthetic” David (Michael Fassbender), survivor of the doomed Prometheus expedition

Alien: Covenant arrives in theaters on May 19, 2017.