NASA’s Artemis II mission, set to be the first crewed journey around the moon in over 50 years, is notable for more than just its ambitious lunar goals. A key, yet often overlooked, aspect of the mission is a significant upgrade to the astronauts’ toilet system.

Addressing Past Challenges

Previous space missions, like those during the Apollo era, relied on a waste management system described by NASA as “objectionable” and “distasteful.” Apollo astronauts used plastic bags and funnels, requiring manual mixing of germicide to control bacteria and gas buildup.

A History of Issues

The Apollo-era system was prone to leaks and considered awkward and messy. Instances of floating waste, such as during the Apollo 10 mission, highlighted the system’s shortcomings. NASA acknowledged the low crew satisfaction with the existing setup.

Introducing the Universal Waste Management System

Artemis II will utilize the new Universal Waste Management System (UWMS), representing a major improvement in space sanitation. The UWMS features handles for stability in microgravity and supports the simultaneous collection of both urine and feces.

Designed for All Astronauts

This new system is designed to accommodate both male and female astronauts and includes a door to provide a degree of privacy within the Orion capsule. Collins Aerospace was first contracted to develop the design in 2015.

Testing and Implementation

A version of the UWMS was initially tested on the International Space Station (ISS) in 2020, with installation completed in 2021. Artemis II will carry a modified lunar version of the system for its first crewed mission around the moon.

Why This Matters for Future Missions

NASA considers effective waste management to be “mission-critical,” as system failures could jeopardize the entire mission. The Artemis II mission will serve as a crucial test for the UWMS, informing the systems NASA will rely on for future lunar and, eventually, Mars missions.