How SpaceX started and what's next for Elon Musk's Mars dream

4:01 PM ET Wed, 20 March 2019

What started as Elon Musk's vision to create a science experiment on Mars has turned into a powerhouse in the aerospace industry, shipping private satellites, NASA missions and military cargo. SpaceX has some of the most powerful rockets and many of them can be reused, bringing down the price of getting to orbit, and it plans to send astronauts to space by the end of 2019. Here's the story of SpaceX and what comes next.