NASA repaints a 737 for lunar-gravity astronaut tests

A freshly painted NASA 737 sat on an Oklahoma ramp on August 13, 2026, but the paint is only the surface of the story. NASA is modifying the aircraft into a reduced-gravity test platform for the agency’s next round of lunar-simulation work.

The aircraft will fly parabolic maneuvers at NASA’s Johnson Space Center in Houston to create lunar-gravity conditions. Those flights are designed to validate lunar suits and the related crew systems that Artemis missions will need, while NASA’s Armstrong Flight Research Center in Edwards, California, oversees the work.

NASA took ownership of the aircraft from the United States Air Force in June 2026. The agency has not published a flight date, and the announcement describes preparations rather than completed tests. That distinction matters: the 737 is being readied for the campaign, not presented as an aircraft already supporting astronauts in flight.

The same aircraft will also support systems-integration research involving flight autonomy, sensors, and other digital systems in reduced-gravity testing.

So what changes, concretely? NASA will use the aircraft for systems-integration research involving autonomy, sensors, and other digital systems in reduced-gravity conditions. The source does not quantify the number of flights or the expected schedule, but it shows the work moving from mission plans toward a physical test asset.