Watch the SpaceX Falcon Heavy Rocket Launch Live

Elon Musk's company aims to test the most powerful rocket currently operating in the world.

Falcon Heavy

The SpaceX Falcon Heavy rests on Pad 39A at the Kennedy Space Center in Florida, on February 5, 2018, ahead of its demonstration mission. (JIM WATSON/AFP/Getty Images)

By Tom Anderson

When Falcon Heavy lifts off, it will be the most powerful operational rocket in the world by a factor of two, with the ability to lift into orbit nearly 64 metric tons – a mass greater than a 737 jetliner loaded with passengers, crew, luggage and fuel, according to SpaceX.

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