Musk: We’ve begun testing reusability with something called the Grasshopper Project, which is a Falcon 9 first stage with landing gear that can take off and land vertically.
Anderson: A huge rocket, landing on its feet? Holy shit.
Musk: Yeah, holy shit. The stages go to orbit, then the first stage turns around, restarts the engines, boosts back to the launch site, reorients, deploys landing gear, and lands vertically.