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.