It will be the first commercial launch with the Falcon Heavy. The rocket has more than twice the power of the Space Shuttle rocket. Only The Apollo-era Saturn V moon rocket produced more lift.
Last week, SpaceX used a Falcon 9 rocket to send its Dragon spacecraft to the International Space Station.
SpaceX launched the cargo-carrying capsule atop its Falcon 9 rocket as a test run for NASA. The capsule successfully docked with the space station.
The Associated Press contributed to this report.