When Failure Isn’t an Option: How Artemis Ii Fixed Their Only Toilet in Deep Space
By Chloe Bennett
The engineering behind Orion's commode represents three decades of lessons learned from the Space Shuttle and the International Space Station. Developed by Collins Aerospace, the UWMS integrates automated 3D-printed titanium plumbing to withstand corrosive pre-treated chemical solutions that prevent urea crystallization.
When an astronaut uses the facility, a high-efficiency centrifugal fan spins up to 12,000 RPM, generating microgravity suction. Urine enters an ergonomic funnel connected to a flexible hose, where it encounters an automatic dose of an oxone-based chemical stabilizer. This treatment keeps bacteria from generating hazardous ammonia gases. Fecal matter drops into a separate dry can canister beneath a spring-loaded lid, where airflow compresses solid waste into perforated storage liners without exposing the cabin to odors.
The failure detected on Artemis II occurred directly at the confluence of the liquid vacuum transport line and the rotary separator drive. Rather than spinning freely, the system’s internal sensors detected anomalous current spikes from the motor. The onboard flight software immediately triggered a protective shutdown, preventing mechanical burnout but leaving the four-person lunar flyby crew without active waste processing.
Chloe Bennett explores the intersection of pop culture, streaming entertainment, digital trends, and contemporary lifestyle. Her weekly commentary reaches thousands of culture enthusiasts.
