At Kennedy Space Center on October 23, NASA Administrator Jared Isaacman described an effort to move Artemis work faster while reaffirming the existing targets: Artemis III in summer 2027 and Artemis IV in 2028. The first mission is planned as a crewed docking rehearsal in Earth orbit; the second is the planned crewed lunar landing.

Artemis III and Artemis IV have different jobs

NASA targets Artemis III for summer 2027 as an Earth-orbit rehearsal involving Orion and commercial lunar lander systems. The mission is designed to test rendezvous, docking and interoperability in orbit, not to land on the Moon. NASA’s Artemis architecture allows one or both lander systems to take part.

Artemis IV remains the planned crewed lunar landing target for 2028. For background on NASA’s earlier Artemis IV planning, see our previous coverage of the 2028 landing target.

What NASA says it is doing to move faster

Isaacman said NASA was deploying personnel across its centers and through the supply chain to address work on the critical path, the tasks that determine whether a schedule can move forward. He also said NASA was working toward a tanking test by the end of 2026, ahead of the Artemis III target.

Those are planned actions and milestones. Isaacman’s remarks did not change the mission targets: Artemis III remains targeted for summer 2027, and Artemis IV for 2028.

The engineering work Isaacman identified

Isaacman cited propulsion and spacecraft-integration work needed to get Orion into an orbit closer to the Moon, along with complex launch campaigns. He also named large-scale cryogenic propellant transfer, which involves moving extremely cold propellant, and assembling stages in orbit.

These tasks span spacecraft systems, launch operations and work in space. They are the specific engineering challenges Isaacman discussed alongside NASA’s effort to accelerate the schedule.

NASA is preserving both lander options

Isaacman said NASA intended to keep viable paths open with both lunar-landing partners, SpaceX and Blue Origin, until data and schedule considerations made a choice necessary. He did not name a selected partner in those remarks.

On testing, Isaacman said NASA would not compromise hardware testing or qualification and would not launch until the hardware was ready.