SpaceX plans to launch 5 uncrewed Starship missions to Mars within 2 years, according to CEO Elon Musk. The timeline for crewed missions depends on the success of these flights; if successful, crewed missions could launch in four years, or be delayed by two. Musk aims for Starship to enable Moon and Mars missions, despite shifting timelines. NASA has delayed its Artemis 3 mission to Sept 2026.