 And so that's that's pretty expensive. And so so NASA kind of shifted things. And they did this with, for example, the commercial crew program where, hey, we don't want to be in the business of developing a spaceship to go into low earth orbit. Let's hire a company to do that. And so Boeing and SpaceX, they both decided to compete for the contract. And if they met certain benchmarks, NASA would just say, hey, we're just going to rent your spaceship.