No toilet for returning SpaceX crew, stuck using diapers

This photo provided by NASA, Astronauts, from left, Mark Vande Hei, Shane Kimbrough, Akihiko Hoshide and Megan McArthur, pose with chile peppers grown aboard the International Space Station on Friday, Nov. 5, 2021. (NASA via AP)

The astronauts who will depart the International Space Station on November 7 will be stuck using diapers on the way home because of their capsule's broken toilet.

NASA astronaut Megan McArthur on November 5 described the situation as “suboptimal" but manageable. She and her three crewmates will spend 20 hours in their SpaceX capsule, from the time the hatches are closed until the planned splashdown on November 8 morning.

“Spaceflight is full of lots of little challenges. This is just one more that we’ll encounter and take care of in our mission. So we’re not too worried about it,” she said during a news conference from orbit.

After a series of meetings on November 5, mission managers decided to bring McArthur and the rest of her crew home before launching their replacements. That SpaceX launch already had been delayed more than a week by bad weather and an undisclosed medical issue involving one of the crew.

SpaceX is now targeting liftoff for November 10 night at the earliest.

French astronaut Thomas Pesquet, who will return with McArthur, told reporters that the past six months have been intense up there. The astronauts conducted a series of spacewalks to upgrade the station's power grid, endured inadvertent thruster firings by docked Russian vehicles that sent the station into brief spins, and hosted a private Russian film crew — a space station first.

They also had to deal with the toilet leak, pulling up panels in their SpaceX capsule and discovering pools of urine. The problem was first noted during SpaceX's private flight in September, when a tube came unglued and spilled urine beneath the floorboards. SpaceX fixed the toilet on the capsule awaiting lift-off, but deemed the one in orbit unusable.

Engineers determined that the capsule had not been structurally compromised by the urine and was safe for the ride back. The astronauts will have to rely on what NASA describes as absorbent “undergarments.”

On the culinary side, the astronauts grew the first chile peppers in space — “a nice moral boost,” according to McArthur. They got to sample their harvest in the past week, adding pieces of the green and red peppers to tacos.

“They have a nice spiciness to them, a little bit of a lingering burn. Some found that more troublesome than others,” she said.

Also returning with McArthur and Pesquet: NASA astronaut Shane Kimbrough and Japanese astronaut Akihiko Hoshide. SpaceX launched them to the space station on April 23. Their capsule is certified for a maximum 210 days in space, and with Friday marking their 196th day aloft, NASA is eager to get them back as soon as possible.

One American and two Russians will remain on the space station following their departure. While it would be better if their replacements arrived first — in order to share tips on living in space — Kimbrough said the remaining NASA astronaut will fill in the newcomers.