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NASA Revises Artemis III Timeline: Earth Orbit Test Mission Postponed to 2028

Confirmed1 source · Oct 15, 2026

NASA's next crewed lunar program milestone will test spacecraft rendezvous in Earth orbit before attempting lunar operations, marking a shift from the original plan to land astronauts on the moon.

NASA Revises Artemis III Timeline: Earth Orbit Test Mission Postponed to 2028
Image via Wired

What happened

Following the successful Artemis II flyby in April, NASA revised its schedule. The next mission will launch in 2028 as an Earth-orbit test. In 2027, NASA will conduct a preliminary test in Earth orbit where the Orion capsule rendezvouses and operates with commercial lunar landing test articles from SpaceX and Blue Origin to verify safe maneuvering procedures before attempting the same operations in lunar orbit. Scientist Barbara Cohen confirmed that Artemis III will deploy witness materials (aluminum foil, Teflon, ceramic pieces) to study how the crew cabin environment affects samples during spaceflight, serving as a dress rehearsal for future lunar sample collection and curation.

Context

The Artemis missions prioritize exploration, technology development, and inspiration rather than pure science, though the program identifies scientific opportunities within its operational scope. The revision reflects the practical need to validate rendezvous procedures with commercial partners before committing to lunar orbit operations. Cohen emphasized that human astronauts provide capabilities robots cannot: natural scene comprehension, zooming into details, and real-time interpretation and inference—abilities NASA aims to leverage for lunar surface exploration and scientific observation. The program also establishes new operational practices, including direct communication between science officers and crew during missions, to optimize human observation and data collection for future lunar science objectives.