Artemis 2 mission, marking humans’ return to the vicinity of the Moon, faces an unexpected issue aboard the Orion capsule: the toilet system is malfunctioning, and the cause could be an unforeseen chemical reaction.
The four astronauts launched on April 1 for a mission of approximately ten days. However, technical problems related to the sanitation system emerged in the early hours of the flight.
Astronaut Christina Koch personally intervened to repair the toilet immediately after the malfunction occurred.
She said she is "proud to be called a space plumber" and emphasized the importance of the equipment, considered essential for the crew's comfort. The issue initially seemed resolved, much to everyone's relief.
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Malfunction recurs: waste water evacuation no longer works
However, the situation later became more complicated. The system is partially operational – there is a separate pipe for solid waste – but the evacuation of urine and waste water into space is blocked.
Astronauts even reported an unpleasant smell, described by Christina Koch as similar to that of a "burnt radiator."
NASA activates "plan B"
Faced with the situation, the NASA team decided to activate an alternative solution: using portable, individual, and reusable toilets.
Rick Henfling, an agency official, explained that the toilet "still works," but the real issue is the disposal of waste water. "We need to resort to other alternatives," he stated.
Initially, engineers suspected ice formation on the pipes. The capsule was oriented towards the Sun, and the heating systems were activated, but the blockage persisted.
A new hypothesis points to a possible chemical reaction within the system, which could have generated deposits capable of clogging the filter.
A million-dollar system
The Orion capsule toilet, valued at approximately 23 million dollars, is similar to the one on the International Space Station but is being used for the first time on a mission so far from Earth.
In comparison, astronauts from the Apollo program era used much more rudimentary solutions, such as special waste bags.
The Orion toilet, located on the cabin floor, is so noisy that it requires hearing protection during use.
In addition, solid waste is collected in bags that will be brought back to Earth with the crew.
Canadian astronaut Jeremy Hansen said before the launch that the toilet is "the only place where you can truly feel alone for a short time."
NASA officials say that the issue can only be thoroughly analyzed after the capsule's return.
Lori Glaze explained that the teams will then be able to "intervene and discover the exact source" of the malfunction.