Technology & Science

Artemis II Crew Completes Full Countdown Rehearsal as New NASA Chief Jared Isaacman Locks In Feb 2026 Launch

On 20 Dec 2025 NASA ran an end-to-end, T-30-seconds countdown test with the four Artemis II astronauts inside Orion, after which freshly confirmed Administrator Jared Isaacman publicly committed to launching the crewed lunar-flyby no later than Feb 5 2026.

By Priya Castellano

Focusing Facts

  1. Isaacman was confirmed by the U.S. Senate on 17 Dec 2025 in a 67–30 vote as NASA’s 15th administrator.
  2. The rehearsal walked through the final 5.5 hours of launch procedures with Orion still in the Vehicle Assembly Building, stopping at T-00:00:30.
  3. Artemis II is slated to carry the crew 5,800 mi (≈9,000 km) beyond the Moon on a 10-day free-return trajectory.

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