The company says Falcon Heavy will be the most powerful rocket ever built.

VOA: special.2011.04.26

Both previous launches of the Falcon 9 rocket occurred later than initially scheduled.

WSJ: SpaceX's Pioneering Flight Plans

The company successfully developed its own launch vehicle, the Falcon 9 rocket, and its own spacecraft, called the Dragon.

FORBES: SpaceX Struggles, But Remains On Track To Space Station

Unexpected high temperature inside one of the Falcon 9 rocket's engines prompted an automated shutdown less than a second before liftoff.

WSJ: SpaceX Acts Fast for New Launch