Elon Musk's company SpaceX took a big step by showcasing its claim that reusable rockets are the future of space travel . The two-stage Falcon 9 lifted off from Cape Canaveral and it featured not only a reused booster, but a reused Dragon capsule that visited the International Space Station a few months ago. What’s more, NASA may have gotten a discount on the flight. Elon Musk has long touted the re-usability concept for his SpaceX program, and it kicked into high gear in 2017.
