NASA outlines three-rocket sequence for 14-day lunar test

NASA revealed on Oct. 23 that the Artemis III mission will require three separate rocket launches and a 14-day orbital test to validate commercial lunar landers before astronauts attempt a moon landing. The agency presented the operational plan during a more than two-hour press conference at Kennedy Space Center in Florida. This sequence marks a shift from previous single-launch missions, as it involves distinct vehicles from three different providers.

Artemis program manager Jeremy Parsons described the campaign as "likely the most complicated launch campaign ever undertaken." The plan relies on NASA's Space Launch System, SpaceX's Starship, and Blue Origin's New Glenn. All three vehicles will launch from the Space Coast in Florida. This multi-agency approach is designed to test specific hardware under flight conditions that ground testing cannot fully replicate.

The timeline begins with New Glenn, which will carry Blue Origin's Blue Moon lander into low Earth orbit. The SLS rocket will follow, launching the Orion spacecraft carrying four astronauts: NASA's Randy Bresnik, Andre Douglas, and Frank Rubio, and ESA's Luca Parmitano. Parsons noted that SLS will place Orion in a highly elliptical orbit ranging from 18 to 1,122 miles in altitude. The capsule will then adjust to a 345-mile orbit to manage thermal stress, a condition that is harsher in low Earth orbit than in deep space.

Crew operations commence on Flight Day 1 with two days of system checks inside Orion. On Flight Day 3, the spacecraft will rendezvous with Blue Moon at an altitude of 273 miles. The astronauts will spend two days docked, evaluating the lander's environmental controls, life support, and atmospheric pressure capabilities. Teams will also test emergency scenarios and dual-vehicle control protocols to ensure Mission Control can manage both craft simultaneously.

The sequence continues around Flight Day 6 with the launch of SpaceX's Starship. This vehicle will carry a 171-foot upper stage fitted with a docking adapter. Starship is expected to meet Orion on Flight Day 8 at an altitude of 237 miles. This encounter will last roughly two hours. The crew will not enter Starship, but the docking will provide data on interface forces and how the two vehicles interact during maneuvering.

After undocking from Starship, the mission will continue for another six to nine days before a parachute-assisted ocean splashdown. The nominal duration is 14 days, though the window could extend to 17 days. The crew will use this time to test survival suits, a task skipped during the April Artemis II flyby, and conduct health assessments and technology demonstrations. These evaluations are critical for the safety of the upcoming crewed lunar landing.

The results from this test are intended to determine the path for Artemis IV, which is planned for 2028. That mission will attempt the first crewed lunar touchdown since Apollo 17 in 1972. NASA has not yet selected the lander for the 2028 mission. Administrator Jared Isaacman stated the agency is keeping options open to ensure both partners have the best chance at readiness. He said, "We have no intention of surrendering a viable path to the surface before the data and schedule compels us to do so."

The operational profiles for the two lander providers differ significantly. A Blue Origin mission would involve Orion meeting the lander in lunar orbit. A SpaceX mission would likely see Starship dock with Orion in Earth orbit and propel the capsule toward the moon. Parsons confirmed that both companies are planning lunar landing missions for 2028.

NASA is currently targeting a launch date in the summer of next year. However, Isaacman noted in an internal memo last month that the mission is approximately 90 days behind schedule. Parsons identified the lunar lander supply chain as a primary challenge. Both Isaacman and Parsons expressed confidence in resolving these issues, with Isaacman stating, "We're moving with real speed and purpose right now."