NASA's Redesigned Artemis III Mission Will Test Two Moon Landers Before Anyone Sets Foot on the Lunar Surface

A Mission Transformed: No Moon Landing, but a Critical Dress Rehearsal

NASA had a bold promise for Artemis III: return humans to the Moon for the first time since Apollo 17 in 1972. That promise has been rewritten. Artemis III was previously slated to be a crewed mission to the Moon's surface but was reconfigured earlier this year to instead allow for a complex, two-week-long test run of both landers in orbit. It's a significant pivot — but NASA argues it's the smarter, safer path forward.

NASA laid out how Artemis III will now work — a crewed test flight in Earth orbit, not a trip to the Moon, that will try out hardware from both companies building lunar landers — at a press conference at Kennedy Space Center on October 23. Though no exact launch window was announced, Artemis III is expected to lift off in the summer of 2027, according to NASA Administrator Jared Isaacman.

Three Rockets, Two Landers, One Very Busy Two Weeks

The mission needs three launches in quick succession from Florida's Space Coast. Blue Origin's New Glenn goes first, carrying a Blue Moon test lander to low Earth orbit. NASA's SLS follows with Orion and its four-person crew — NASA astronauts Randy Bresnik, Andre Douglas, and Frank Rubio, plus ESA's Luca Parmitano. SpaceX's Starship, with a docking adapter fitted to its nose, launches last.

Orion docks with Blue Moon on flight day three, and that is the meatier of the two tests. The crew opens the hatches, climbs into the lander's cabin, checks its life support and cabin pressure, and runs emergency and dual-vehicle control drills with Mission Control over roughly two days. The Starship encounter lasts about two hours and nobody goes inside — the Artemis III Starship is a lightly modified upper stage with no crew cabin, and NASA mostly wants data on docking loads and how the two vehicles behave once they are joined.

The flight is planned at 14 days and could stretch to 17. Managing the thermal environment will be one of the trickier engineering challenges. NASA's Artemis Program Manager Jeremy Parsons noted that "Orion was built as a deep-space vehicle, and so we're going to have to really manage the thermal environments, which are higher in a low Earth orbit."

High Stakes: This Test Could Decide Who Lands on the Moon

Artemis III will be the tiebreaker between two potential lunar landers for future crewed missions to the Moon's surface, according to Isaacman — though both SpaceX and Blue Origin are planning to touch down on the Moon in 2028 regardless. The competition adds an unusual dimension to what is already a technically demanding mission.

There's still a long road ahead for both companies — Blue Origin has yet to return New Glenn to flight following its on-the-pad explosion in May, and SpaceX notched its first uncrewed orbital flight with Starship only in September. Officials didn't confirm which company would be selected for the historic lunar landing attempt, but said both are making progress, and either or both could be ready in time for NASA's end-of-2028 goal.

What Comes Next: The Moon Landing That Artemis III Is Building Toward

Changing the mission plan allows the landers to be tested safely in Earth orbit, rather than have their first flights be landings on the Moon. That logic is hard to argue with. Docking failures, life-support glitches, and communication breakdowns are far more survivable 273 miles above Earth than in the vicinity of the lunar surface.

The schedule now puts Artemis III — a crewed demonstration that docks with both Blue Moon and Starship near Earth — in "summer" 2027, while Artemis IV, the first actual landing, stays on track for 2028. Administrator Isaacman called it "an achievable path" with the mandate and resources to execute. Whether that confidence holds as hardware development races against the clock is the defining question hanging over the entire program — and the answer won't come until those three rockets leave the launch pad in sequence.