spacex can do that. female: ignition, lift-off of the falcon 9-- brad: spacex and falcon heavy and falcon exploration but space missions as well. it is literally hundreds of millions of dollars cheaper to launch it. nasa builds space telescopes, something i've worked on, and you don't launch on nasa rockets, you launch on spacex 'cause it is cheaper, and that means what used to be the cost of two missions is now four missions. and so once you can do four missions, the science and research accelerates so now then you can go do eight. but there's this multiplying factor that's happening. michael: elon musk's most ambitious rocket of all is this. it's called the starship, a cheap steel tube that can carry a huge payload. this month, it made a test flight to 150 meters before successfully coming back to earth. jonathan: starship is the next-generation rocket, and it looks just like, you know, a 1950s science fiction rocketship. if it works, it could be a further revolution in the cost of getting to orbit. rapid reuse, very huge payloads going into space, being able to carry very large numbers