The first attempt to fire the SpaceX Falcon 9 rocket failed in a stream of smoke, Friday. Multimillionaire Elon Musk, chief executive officer for SpaceX, plans to replace NASA's shuttles delivering cargo to the International Space station. SpaceX is just one of many companies competing for the NASA contract. First launches fail 50 percent of the time.
Watch: Launch attempt here; Elon Musk talk about SpaceX here.
