One week after the triumphant Artemis 2 splashdown, NASA's Artemis program moves forward. The massive core stage for Artemis 3's Space Launch System rocket has rolled out from the Michoud Assembly Facility in New Orleans.

The Next Step in Lunar Exploration

On April 20, NASA moved the core stage—the backbone of the Artemis 3 SLS rocket—from Michoud to the Pegasus barge for transport to Kennedy Space Center in Florida. This milestone marks significant progress toward the 2027 launch window.

The rollout comes just 10 days after Artemis 2 astronauts returned from their historic lunar orbit mission, setting new records: 252,760 miles from Earth, the farthest humans have traveled since the Apollo era.

What Artemis 3 Will Do

Artemis 3 represents a revised mission architecture. Rather than landing on the lunar surface in 2027 as originally planned, it will serve as a critical demonstration mission in Earth orbit. The Orion capsule will test rendezvous and docking operations with private lunar landers—specifically SpaceX's Starship and Blue Origin's Blue Moon—validating techniques essential for later missions.

This change reflects NASA's pragmatic approach to the program's technical and schedule challenges. Early spacesuit delays and lunar lander development timelines necessitated a more achievable interim milestone.

Building Toward the Moon

If Artemis 3 executes its Earth orbit demonstration successfully, the actual lunar landing mission—Artemis 4—is targeted for late 2028. NASA remains confident in this timeline despite setbacks that pushed Artemis 3 from its original mid-2027 date to late 2027.

The Numbers

The complete Artemis 3 SLS core stage stands 212 feet tall. The section that rolled out from Michoud was about 80% of that height, lacking the engine section that will be integrated at Kennedy Space Center.

As NASA administrator Lori Glaze noted, "This is the backbone of Artemis 3. As it heads to Florida for final integration, we are one step closer to testing the critical capabilities needed to land Americans on the moon, and ultimately, paving the way for our first crewed missions to Mars."

Source: Space.com - NASA rolls out Artemis 3 SLS rocket's huge core stage to gear up for 2027 launch