SpaceX Dragon Flight testing is scheduled to complete in the first half of 2019 with the first flight of astronauts, on a mission contracted to NASA, scheduled to occur later the same year. SpaceX's CEO, Elon Musk, named the spacecraft after the 1963 song "Puff, the Magic Dragon" by Peter, Paul and Mary, reportedly as a response to critics who considered his spaceflight projects impossible. SpaceX began developing the Dragon spacecraft in late 2004, making a public announcement in 2006 with a plan of entering service in 2009. Also in 2006, SpaceX won a contract to use the Dragon spacecraft for commercially
Puff, the Magic Dragon to drug-taking. He has also said of the song that it "never had any meaning other than the obvious one" and is about the "loss of innocence in children", and dismissed the suggestion of association with drugs as "sloppy research". In 1973, Yarrow's bandmate Paul Stookey of Peter, Paul and Mary also upheld the song's innocence. He recorded a version of the song at the Sydney Opera House in March 1973, in which he set up a fictitious trial scene. The Prosecutor accused the song of being about marijuana, but Puff and Jackie protested. The judge finally left the case