Elon Musk Grabbed Five Guys Burger After SpaceX Launch Postponement

Elon Musk will tell ya, making history makes ya hungry ... which is why when bad weather scrapped his SpaceX launch earlier this week, he worked up a big burger-sized appetite.

The SpaceX honcho hit up Five Guys with his 2 bodyguards for some tasty burgers Wednesday, not long after the attempt to launch 2 NASA astronauts to the International Space Station got postponed ... until Saturday at 3:22 PM ET.

Les Hatter, Five Guys' VP of Operations of the Central Florida franchise, tells TMZ … Elon stopped at a location in West Melbourne -- which is about 45 minutes from the Kennedy Space Center, where the launch will hopefully happen for real this time.

Conveniently, there's a Tesla supercharging station less than 100 feet from the front door of the fast-food joint ... which had to have made parking a breeze for the electric vehicle company boss.

We're told, Musk sent his guys in to order the food while he stayed out front and chatted with some guests as they were coming and going.

As for what they got -- a round of Little Cheeseburgers (don't let the name fool ya, they're quite hefty), fries and a drink ... and got 'em to go.

As you know, SpaceX is trying to become the first commercial aerospace company to send humans into Earth's orbit. The mission is dubbed Demo-2, and SpaceX's Crew Dragon will take off from the historic Pad, 39A, which famously launched Apollo 11 in 1969 ... en route to the first moon landing.

The 2 veteran astronauts on this mission are 49-year-old Robert Behnken and 53-year-old Douglas Hurley, and it should take them about 19 hours to travel from Florida to the space station ... God willing, and weather permitting.