SpaceX launches Crew Dragon rocket to carry humans

An unmanned Crew Dragon rocket launched by SpaceX from Florida to the International Space Station early Saturday. Elon Musk’s company has already made several supply runs to the station for NASA. But proving that SpaceX can safely fly humans is key to the company’s ambitions for space tourism and creating a human colony on Mars. “Human spaceflight is a core value of our business,” Hans Koenigsmann, vice president of build and flight reliability for SpaceX, said at a pre-launch press briefing with NASA Thursday. “We’ve been working on this for close to 17 years. I’m actually humbled at being at this point.”