NASA Details Artemis III as LEO Rendezvous Test

NASA has unveiled detailed plans for the Artemis III mission, shifting it from a lunar landing to a low Earth orbit test of rendezvous and docking with commercial lunar landers from SpaceX and Blue Origin. The crewed flight, targeted for late 2027, will launch aboard the Space Launch System rocket from Kennedy Space Center in Florida and serve as a critical rehearsal for future Moon operations.

The mission marks a significant adjustment announced in February. Originally set as the first crewed lunar landing, Artemis III now keeps the Orion spacecraft in a 463-kilometer orbit at a 33-degree inclination. Astronauts will conduct proximity operations with pathfinder versions of SpaceX's Starship human landing system and Blue Origin's Blue Moon Mark 2. NASA officials stated the changes allow more time to address technical issues before attempting surface missions on Artemis IV in 2028.

A key hardware modification involves replacing the Interim Cryogenic Propulsion Stage upper stage with an inert spacer of identical dimensions and interfaces. Manufacturing of the spacer is underway at Marshall Space Flight Center in Huntsville, Alabama, where teams are machining structural components...