In a key milestone for NASA’s plan to return humans to the moon, the space agency today announced that SpaceX will build the vehicle that will land astronauts on the lunar surface. The current plan, known as Artemis, calls for astronauts to launch on NASA’s Space Launch System (SLS) rocket, fly to lunar orbit on the space agency’s Orion space capsule, and then transfer to SpaceX’s Starship rocket to make the final descent to the surface.

The contract, worth $2.9 billion, will go toward developing a moon-ready version of the Starship rocket. The futuristic-looking vehicle is still in the prototype stage, with testing ongoing at a Texas facility. SpaceX beat out proposals from Jeff Bezos’ company Blue