For this experimental and uncertain mission, however, he decided on a much smaller and whimsical payload – his old cherry-red Tesla sports car.
A space-suited mannequin was strapped in the driver’s seat, and the radio set to play a David Bowie soundtrack on a loop.
The Tesla and its passenger have been despatched into an elliptical orbit around the Sun that reaches out as far as the Planet Mars.
The Falcon Heavy is essentially three of SpaceX’s workhorse Falcon 9 vehicles strapped together. And, as is the usual practice for SpaceX, all three boost stages – the lower segments of the rocket – returned to Earth to attempt controlled landings.
Two came back to touchdown zones on the Florida coast just south of Kennedy. Their landing legs made contact with the ground virtually at the same time.
“That was epic,” said Mr Musk. “That’s probably the most exciting thing I’ve ever seen, literally.”
The third booster was due to settle on a drone ship stationed several hundred kilometres out at sea. Unfortunately, it was unable to slow its descent by re-igniting sufficient engines, missed the target vessel and was destroyed as it hit the water at some 500km/h.
By then, the upper-stage of the Falcon Heavy, with its Tesla cargo, was heading on a trajectory that would hopefully take it towards Mars’ orbit.
That required the engine on the upper-stage to fire on three separate occasions, with the third and final ignition only occurring after a long cruise phase – something which was confirmed some six hours after the launch.
Having such a large and powerful rocket should open up some fascinating new possibilities for Mr Musk and his SpaceX company. These include launching:
Much bigger satellites for use by US intelligence and the military. The scale of these satellites is limited by current rocket performance.
Large batches of satellites, such as those for Mr Musk’s proposed constellation of thousands of spacecraft to deliver broadband across the globe.
Bigger, more capable robots to go to the surface of Mars, or to visit the outer planets such as Jupiter and Saturn, and their moons.
Huge telescopes. Hubble’s successor, the James Webb Space Telescope, is having to be folded origami-like to fit in its launcher next year.
But it is the low cost – brought about through the recovery and reuse of the boosters – that Elon Musk believes will be a game-changer when allied to the new performance.
“It’ll be game-over for all other heavy-lift rockets,” he told reporters on Monday.
“It’ll be like trying to sell an aircraft where one aircraft company has a reusable aircraft and all the other companies had aircraft that were single-use where you would parachute out at your destination and the plane would crash-land randomly somewhere. Crazy as that sounds – that’s how the rocket business works.”