On the night of April 1 to 2, 2026, the SLS rocket of the NASA took off from the Kennedy Space Center with the capsule Orion and four astronauts on board, for a ten-day journey to the Moon. With Artemis IImanned flights leave low orbit for the first time since 1972.
A few hours after this impeccable start, however, the first incident did not come from the engines or the electronics, but from the toilets. A warning light starts flashing, unpleasant odors invade the cabin: the only toilet on the ship Orion has just experienced its first in-flight failure.
Artemis II: what happened on board Orion after the perfect takeoff?
The system in question, theUniversal Waste Management System (UWMS), is the high-tech toilet ofOrionderived from that of the International Space Station. In weightlessness, gravity is replaced by a flow of air: a fan sucks up liquids via a pipe with an individual tip, while solids are stored in dedicated bags.
After to NASAthe crew reported “the flashing of a fault light” on the UWMS shortly before an apogee raising maneuver. The fan responsible for collecting urine was blocked: the suction no longer works correctly, the odors rise and the toilets remain fully usable only for the solid part.
Toilet problem on Artemis 2: how did the crew handle the breakdown?
On board, it’s the astronaut Christina Koch who takes control and calls the control center in Houston to start the procedure. While awaiting the diagnosis, the four crew members return to emergency mode, with individual pockets and bags inspired by those of Apollo, essential to manage the needs in less than 9 m³ of passenger compartment.
Ground engineers then make the diagnosis and provide a troubleshooting procedure to follow. “The crew, in close collaboration with the Mission Control Center in Houston, successfully restored the normal operation of the toilets on the Orion spacecraft following the demonstration of proximity maneuvers,” writes the NASA. After a few hours of testing, the fan speed was judged to be normal and full use of the toilet was allowed again.
Artémis II mission: what does this Orion toilet incident change for the future?
On the trajectory side, Artemis II continues its program without further incident. The spacecraft must gradually approach the Moon until day 5, fly over it around the sixth day between approximately 6,400 and 9,600 kilometers altitude, then return to Earth until day 10.
This toilet breakdown, without danger for the mission, reminds us that manned flights also depend on comfort and morale. The Canadian astronaut Jeremy Hansen underlines that this WC constitutes almost the only space of privacy on board, a key point to be made reliable before Artemis III and a lasting return to the Moon.
