The Home Team looks back at how improbable Elon Musk's SpaceX ambitions once appeared. Musk pushed reusable orbital rockets despite skepticism, and he later became emotional when Apollo astronauts Neil Armstrong and Gene Cernan publicly criticized commercial spaceflight. SpaceX was founded in 2002. Falcon 9 completed its first successful first-stage landing in December 2015, followed by the first reflight of a previously launched orbital-class rocket booster in March 2017, major milestones for rocket reuse. The reusable-rocket strategy ultimately became central to SpaceX's launch model. NASA went from developing and operating much of its own launch hardware to becoming a major SpaceX customer and partner, including through Commercial Crew missions to the International Space Station. One detail in the clip is incorrect: Buzz Aldrin was not the Apollo astronaut whose criticism famously brought Musk to tears. During a 2012 60 Minutes interview, Musk reacted emotionally to criticism from Neil Armstrong and Gene Cernan, whom he described as heroes.