technical high confidence

SpaceX IFT-12 Countdown Underway — 6 Days to Starship Flight 12 Window Opening at Starbase

| Artemis II

On May 6, 2026, SpaceX's Starship Integrated Flight Test 12 (IFT-12) stands 6 days from the opening of its primary launch window on May 12, with Ship 39 (Starship V3) and Booster 19 stacked and standing on Pad 2 at Starbase, Boca Chica, Texas. Final pre-launch preparations are underway including roll-back checks, propellant loading rehearsals, and confirmation that the FAA post-IFT-11 investigation closure requirements have been met; an FCC communications license is active through October 2026 and FAA flight-safety approval was granted in late April 2026. IFT-12 introduces the debut of the Starship V3 architecture — featuring a taller upper stage, increased propellant capacity, and upgraded Raptor 3 engines — in a revised mission trajectory: Ship 39 will execute a sub-orbital flight profile with splashdown in the Indian Ocean, while Booster 19 will attempt a return to the Mechazilla integration tower for a catch. The mission's primary objectives include first-flight validation of the docking port hardware and the propellant transfer system components integrated into Ship 39's forward section — critical prerequisites for Starship HLS to qualify for the Artemis III Earth-orbit rendezvous and docking demonstration in 2027. No orbital ship-to-ship propellant transfer will be conducted during IFT-12; that demonstration remains a future milestone. Launch windows extend through May 18, 2026. The IFT-12 launch is a critical step for Artemis program timelines: successful demonstration of docking hardware on IFT-12 enables SpaceX to advance toward the full orbital refueling architecture required for Artemis IV's crewed lunar landing, currently targeting 2028.

SpaceX Starship Ship 39 and Booster 19 stand at Starbase Pad 2 with 6 days until IFT-12's May 12 launch window — the mission will debut Starship V3 and validate docking/propellant-transfer hardware critical for Artemis III HLS.
SpaceX Starship Ship 39 and Booster 19 stand at Starbase Pad 2 with 6 days until IFT-12's May 12 launch window — the mission will debut Starship V3 and validate docking/propellant-transfer hardware critical for Artemis III HLS. — NASASpaceFlight / SpaceX