• Docking tests between Orion and commercial lunar landers in low Earth orbit
• Longer crew time in Orion with launch system simplification measures

NASA has unveiled new details about its upcoming Artemis 3 mission, which officials say will be one of the most complex spaceflights in the agency’s history.

The mission, expected to launch in 2027, will focus on testing docking and rendezvous operations between the Orion spacecraft and one or two commercial lunar landers in low Earth orbit.

Artemis 3 is a key part of the Artemis program, in which four astronauts will travel aboard the SLS rocket inside the Orion capsule before linking up with a lunar lander developed by private companies.

The architecture marks a shift from earlier plans that aimed for a direct lunar landing, particularly near the Moon’s south pole.

NASA said astronauts will spend more time inside Orion compared with Artemis 2, helping improve life-support system evaluations.

A dummy spacer will be used instead of an active upper stage, a change aimed at reducing cost and simplifying launch operations.

Once in orbit, the European Space Agency’s service module will position Orion, enabling multiple launch opportunities for mission components.

Planning is still underway, including mission duration, crew assignments, and scientific experiments, with possible crew interaction with lander test vehicles.

NASA is also seeking industry input to improve communications with Earth and exploring opportunities to deploy small CubeSats in orbit during the mission.

The agency says Artemis 3 will serve as a critical step toward Artemis 4 and future human lunar landings.