As NASA embarks on its ambitious mission to send humans farther into space than ever before, a technical challenge has emerged with the Orion space capsule’s toilet system.
Since the launch from Earth on Wednesday, the four astronauts aboard the Artemis II mission’s Orion capsule have encountered intermittent issues with the spacecraft’s toilet.
On Saturday, NASA reported that the toilet was unable to discharge its waste overboard, potentially due to a frozen vent line. As an alternative, the astronauts have been utilizing a backup system involving collapsible plastic containers for urine collection.
Despite the toilet-related challenges, the Artemis II mission is successfully underway, marking its fifth day of the historic 10-day journey around the Moon.
The crew members – NASA’s Reid Wiseman, Victor Glover, and Christina Koch, along with Canadian Space Agency astronaut Jeremy Hansen – are situated in a compact cabin, approximately the size of a camper van, measuring just 5m (15ft) wide and 3m (9ft) high.
During a video link communication with Earth on Thursday, mission specialist Koch acknowledged a minor “priming” issue with the toilet.
“I’m proud to call myself the space plumber; I like to say that it is probably the most important piece of equipment on board,” she stated.
Subsequently, NASA disclosed in a press release on Saturday that a wastewater vent line had become clogged.
The flight crew adjusted the spacecraft’s orientation to point the vent towards the Sun in an attempt to clear the blockage. According to the agency, this adjustment did not affect the mission’s trajectory.
While they managed to free up space in the waste management system tank, the issue was not fully resolved, NASA reported.
“Engineers have been using the vent heaters to melt any potential ice that may be clogging the line,” NASA stated, adding that they were continuing to orient the vent toward the Sun.
“The wastewater tank is not full and the toilet is operational; however, the crew was instructed to use backup collection devices overnight if needed,” NASA clarified.
John Honeycutt, the chair of the Artemis II Mission Management Team, addressed the public’s fascination with the space toilet during a news conference on Saturday evening.
“I think the fixation on the toilet is kind of human nature,” he said. “Everybody knows how important that is to us here on Earth. And it’s harder to manage in space.”
In a Sunday interview on CNN’s State of the Union, NASA Administrator Jared Isaacman commented on the waste management issue, stating that while they “can do a lot of extraordinary things in space right now, but nailing this capability is one that we need to certainly work on.”
Artemis II is currently on a looping trajectory that will take the crew around the far side of the Moon and back. This mission marks the first time since 1972 that humans have ventured beyond Earth’s orbit.
The four-person crew will not land on the Moon during this mission but will circle it, with the aim of paving the way for a future human landing, the first since the 1960s and 70s.
During the mission, the astronauts will assess Orion’s performance, including manually flying the capsule in Earth’s orbit to evaluate steering capabilities and aligning the spacecraft for potential future Moon landings.
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