SpaceX has begun building a launchpad for its Starship rockets in Florida, CEO Elon Musk announced on Friday, as the company looks to add another location to launch the mammoth rocket that is in development.

“Construction of Starship orbital launch pad at the Cape has begun,” Musk said in a tweet.

Starship is the massive, next-generation rocket SpaceX is developing to launch cargo and people on missions to the moon and Mars.

It will take a lot to get to Mars.

SpaceX CEO Elon Musk wants to send humans to Mars and beyond, but he may face a hurdle on Earth first.

Elon Musk thinks SpaceX needs to ramp up production of its next-generation Raptor engine soon or face potentially dire consequences, according to media reports.

Raptors will power Starship, the huge, fully reusable vehicle that SpaceX is developing to take people and cargo to the moon, Mars and other distant destinations. Each Starship will need a lot of Raptors — 33 for the giant first-stage booster, called Super Heavy, and six for the upper-stage spacecraft, known as Starship.

The two billionaires are locked in a race to send humans to space, with Musk’s SpaceX far in front of Bezos’ Blue Origin venture. But the two differ on what to do when humanity arrives in space: Musk wants to establish a self-sustaining city on Mars, while Bezos would rather see humans orbiting Earth in giant space stations.

Musk’s vision receives a lot of publicity, but space consultant Rand Simberg tells Inverse that Bezos’ goal is the “more expansive.”

“Elon is what [science fiction writer Isaac] Asimov would have called a planetary chauvinist,” he says. “He thinks people need to be on planets. He wants to be a multi-planet species. That’s nice, I guess. But Bezos actually has a more expansive vision.”

SpaceX CEO Elon Musk has big plans to send humanity to the Moon, Mars, and beyond.