SpaceX's Starship megarocket will get off the ground again in mid-March, if all goes according to plan. The company plans to launch Starship's next test flight in six weeks, Elon Musk said Sunday (Jan. 25) via X , the social media platform he bought in October 2022 (when it was still known as Twitter). The flight will be the 12th overall for Starship but the first of the bigger, more powerful "Version 3" (V3) iteration of the vehicle. SpaceX is developing Starship, the biggest and most powerful rocket ever built, to help humanity colonize Mars . Standing at 13.77 inches (35 cm), this is a 1:375 ratio of SpaceX's Starship as a desktop model.