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The world’s biggest rocket: How SpaceX’s new Starship ‘V3’ differs from its predecessors
space.com May 14, 2026

The world’s biggest rocket: How SpaceX’s new Starship ‘V3’ differs from its predecessors

Curated by · TechCapsules ·

AI-summarised brief · reviewed before publication

SpaceX is preparing to launch its new Starship V3 megarocket, which has undergone a complete design overhaul since its last liftoff seven months ago. The rocket's new design is more powerful, resilient, and capable than its predecessors, with a refined architecture that can support rapid reuse and high flight rates. Starship V3 stands 5 feet taller than previous builds and features SpaceX's new Raptor 3 engine, with 33 engines firing with a combined thrust of over 18 million pounds at liftoff. The vehicle has been equipped with various upgrades, including a redesigned fuel transfer tube and improved reaction control system. The launch is scheduled for May 19 and will be a crucial step towards meeting NASA's timeline for landing astronauts on the moon. SpaceX has made significant improvements to the rocket's design, including changes to the aft end and interstage region. The company is gearing up for the planned launch, which will be a major milestone in the development of the Starship program.

💡 Why It Matters

  • · SpaceX's ability to demonstrate cryogenic fuel management and refueling capabilities will be crucial for Starship's success in flying beyond low Earth orbit.
  • · Meeting NASA's qualifications for crewed flights is also essential for SpaceX to stay on track with its lunar landing plans.
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