The world's largest rocket is about to get even larger.

SpaceX is on the cusp of debuting a new version of its Starship vehicle that will become the largest rocket the company has ever launched. The third generation Starship, which is not just bigger, but more powerful than the previous two iterations, is also due to get off the ground from an entirely new launch pad at SpaceX's South Texas headquarters.

The long-awaited launch comes as the commercial spaceflight company that billionaire tech mogul Elon Musk founded in 2002 races to have Starship ready to serve as a lunar lander for NASA's crewed missions to the moon's surface.

The new-and-improved prototype features a slew of upgrades to both the Starship's lower stage booster and its upper stage vehicle that will fly in space to improve overall performance.

Ahead of the next test flight, which SpaceX refers to as flight 12, here's everything to know about Starship Version 3.