Main Engine Cut Off

The entire hour-long show is absolutely worth a listen—she gives a good update on where SpaceX is at, currently—but one particular moment stood out.

At the 26:55 mark, she edited herself away from saying that Raptor’s primary purpose is to power the ITS. She instead said Raptor’s original purpose was to power the ITS.

Between that self-edit, the fact that she made it clear that SpaceX is still considering a Raptor-powered Falcon upper stage, and the fact that she said openly that SpaceX wants to build a reusable upper stage, some pretty solid assumptions can be made about what’s happening internally: they’re working on a fully reusable Raptor-powered upper stage to fly on Falcon.