On Tuesday afternoon, SpaceX is set to launch its Falcon Heavy rocket for the first time, from a pad at NASA's Kennedy Space Center.
The rocket – the biggest and most powerful system SpaceX has ever built – will carry Musk's red 2008 Tesla Roadster. The colourful stunt is meant to demonstrate how the company might someday help deliver people and other payloads into space.
"Red car for a red planet," Musk said on Twitter in early December.
Musk has repeatedly warned that there's a good chance Falcon Heavy could burst into flames before it reaches its destination.
"The payload will be … playing Space Oddity, on a billion year elliptic Mars orbit," Musk said in December.
On Monday, he even posted a photo of the car with a dummy driver Musk referred to as "Starman".
SpaceX's Falcon Heavy system could one day ferry a payload of 37,000 pounds – roughly 14 Tesla Roadsters' worth of mass – to Mars. That will come in handy if Musk ever manages to send humans to colonise the red planet.
The key difference between the Falcon Heavy and other rocket systems is two-fold: it's both bigger and cheaper.
The 230-foot-tall (70-metre-tall) Falcon Heavy system relies on three reusable boosters, which are each made of nine cone-shaped engines. Unlike most booster systems, these rocket-pushers are not for one-time use.
When successful, the boosters push their payload into the sky, then detach, land themselves, and get refurbished for re-use. After a single use, boosters from other traditional systems generally fall into the ocean, burn up in the atmosphere, or get dumped on the ground.
SpaceX first successfully tested the new recycling system in March of 2017 with its Falcon 9 rocket. Those same reusable cores make the price of a Falcon Heavy launch just US$90 million,about a third of the cost of the competition.
The other perk of the new system, of course, is its power. The only rocket that was ever able to carry more stuff into space than Falcon Heavy was the Saturn V rocket, which was developed and used by NASA for its Apollo moon missions in the 1960s and 70s.
According to SpaceX, the Falcon Heavy rocket is capable of carrying roughly 2.6 times as much stuff as the US space shuttle program did:
Last week, SpaceX fired up Falcon Heavy on the launchpad, the first sign that the company was nearly ready for this week's historic event. But the SpaceX boss knows the coming launch is no sure bet.
Musk tweeted "Destination is Mars orbit. Will be in deep space for a billion years or so if it doesn't blow up on ascent."
Other space moguls are rooting for a successful launch for Musk.
Amazon CEO Jeff Bezos, who's heading up his own privately-funded space company, sent Musk a well-wishing tweet on Monday. Musk chimed back just hours later with his own kissy face for the Blue Origin boss.
Thanks 😘— Elon Musk (@elonmusk) February 5, 2018
Those who want to watch the drama unfold can tune in to the livestream of SpaceX's Falcon Heavy launch on Tuesday afternoon. The launch is scheduled to occur between 1:30 and 4:30 pm ET, though there is always a chance of delays.
The Falcon Heavy launch is "guaranteed to be exciting, one way or another," Musk quipped in a December tweet.
This article was originally published by Business Insider.