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Shooting stars: What happens when astronauts poop in space?

Astronauts use the atmosphere to their advantage.

A shooting star above a winter landscape.

Astronauts must undergo extensive training before they can enter space. They have to learn spacecraft operations, survival skills, robotics, physical fitness, how to walk in space, and emergency protocols in case something goes wrong. They also need extensive training on how to use the toilet.

How do astronauts go to the bathroom in zero gravity?

Astronaut Chris Hadfield, a former commander of the International Space Station (ISS), says that astronauts must learn to recognize that the urge to go feels different in zero gravity. “How do you know when you have to poop on earth? It's actually because of the weight of the poop inside you. Tells you, hey, it's time to poop,” Hadfield says. “Well, if you're weightless, then your body's not gonna tell you it's time to poop. So you almost have to learn this new sort of fullness symptom that tells you it's time to poop.”


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Hadfield goes onto explain the rather ingenious of fans in space station toilets that mimic gravity for you. "Taking the place of gravity to pull the poop into the toilet is airflow," Hadfield explains. The fans work to suck the waste down once it leaves the body (this goes for urine as well, notes Hadfield). Though an impressive workaround, Hadfield certainly appreciates the effects of gravity after returning to Earth since it makes it a lot easier to go poop. “You're counting on gravity, cause gravity is gonna pull it away from you,” Hadfield said. “And without gravity, even when you're done pooping, the the poops just gonna stay sort of sticking to you. So we wear a rubber glove. And sometimes you have to, like, physically separate the poop from your body.”

Thank goodness for gravity.

johnson space center, space toilet, bathroom space shuttle, houston texas, space, engineering, Space Shuttle toilet on display at the Johnson Space Center in Houston.via Svobdat/Wikimedia Commons

Using air instead of water to suck waste into a space toilet makes things a lot less messy, too. You don’t want to flush your urine and feces in zero gravity. That would be a horror show. Being in space also does strange things to your poop. When astronaut Scott Kelly returned home after spending a year aboard the ISS, researchers found that his gut microbiome changed significantly from those typically found on the ground. It took a few months after Kelly’s return to Earth for his gut to return to normal.

iss, international space station, space, nasa photos, its, solar arraysThe International Space Station.via NASA/Wikimedia Commons

Where does the poop go when astronauts use the bathroom in space?

When Kelly was on the ISS, the urine was transformed into reusable water aboard the space station. The feces, for which he produced over 180 pounds during his 340-day stay in space, is collected into bags and put on a small craft that is launched into space. Much like a shooting star or meteorite, the waste eventually burns up as it reenters the atmosphere, so you don’t have to worry about astronaut poop landing on the roof of your house.

Astronauts must be cautious about when and where they use the restroom while in space, so a diaper can be a valuable asset during their mission. There’s nowhere to go on a spacewalk, so astronauts wear diapers to avoid aborting their mission if nature calls 250 miles above the Earth's surface. They also wear a diaper during takeoffs and landings because it’s too dangerous to get up and walk around the cabin.

You have to master an incredible number of skills to be able to make it into space as an astronaut. You need to know science and engineering, but also possess a good sense of self. You must learn new ways of interacting with your body, and one of the most important values you can cultivate while exploring the final frontier is humility.

Abalone Caye is a small island off the coast of Belize, and for about a week, it's home to an important group of kids.

The island, located in the middle of the Port Honduras Marine Reserve, is home to a small research station where five local college-age kids eat, work, and live together for a week each summer before heading back to the mainland.

There's a good reason for this expedition: These kids are in training to become community reef researchers.


Photo from TIDE, used with permission.

The Community Researcher Training Program is managed by James Foley and the Toledo Institute for Development and Environment (TIDE), an environmental institute in Belize. TIDE manages a large swath of natural areas in southern Belize, including the Port Honduras Marine Reserve. And the students, who all come from local communities, conduct research that's vital to helping us protect our coral reefs.

They learn how to do scientific research that'll help TIDE monitor and protect the reef, such as taking underwater fish counts, going out with fishermen to weigh their catches, or doing surveys of the local markets.

Foley also teaches them professional-level scuba diving as well as teamwork, which can be really important since the work means they may have to stay out on boats (or tiny islands) for hours or days at a time.

Photo from TIDE, used with permission.

Nice, right? But let's pause for a second and zoom out. Because big picture: Our reefs are in trouble, and they desperately need good management.

Coral reefs are an amazing ecosystem, but climate change is disrupting the little animals that make reefs, causing a potentially fatal problem known as coral bleaching. What's more, poor fishing practices means that reefs have been overfished, polluted, poisoned, trawled, and even blasted with dynamite.

Bleached coral in the Great Barrier Reef. Photo by Acropora/Wikimedia Commons.

Looking at all these problems caused by people, it's tempting to say, "OK, fine, we'll just close them off and keep everyone out." But that's neither realistic nor fair. Communities rely on these reefs for food and income, so managed access to the reefs is necessary in most areas around the world.

But managed access isn't just about limiting the number of fishermen — it's about studying and monitoring reef health and making policy changes as necessary, which is where the Community Researcher Training Program comes in. If we can head off problems like overfishing and pollution, we can help keep reefs healthy.

Foley's program has been successful because local communities don't always trust outsiders who come in and start telling people to change.

Often these communities have been living next to and with reefs for generations. They have deep cultural, historical, and economic ties to the reefs and their way of life.

So when a foreigner comes in – who hasn't lived there, whose family hasn't spent years fishing there – and starts ordering people around, it's understandable that locals would be mistrustful.

Foley has experienced this firsthand. He said that when he first arrived at TIDE, he'd try to talk to locals the conventional way, gathering locals into a room with graphs or discussions about trends and trying to tell them about changes they needed to make. But his words weren't always received well.

"People would be standing up, interrupting me, and saying 'You don't know what you're talking about. I've been fishing here all my life, and my father before me,'" Foley said.

And outsiders aren't always the best candidates for the job anyway.

Some research or management organizations rely on foreign volunteers, but doing that can come with drawbacks. You can't always count on volunteers having a lot of scientific training. Outsiders might also not understand the local environment or culture.

Even if the outsiders are highly trained professionals, it can still be a problem. Foley mentioned seeing otherwise good science derailed by a lack of local knowledge — some bit of information the scientist missed but that all the local fishermen knew by heart.

And at the end of the day, they don't live there. While a force of foreign volunteers might care deeply about the reef on an emotional or intellectual level, they don't live with it or depend on it for their livelihoods like the locals do.

That's why putting scientific power in the hands of these local kids is an awesome idea.

Photo from TIDE, used with permission.

In fact, many of the same fishermen who were initially distrustful of the program are now on board.

"We've actually had now fishermen standing up in meetings and saying, 'Five years ago, you telling me this, I wouldn't have believed it. But now my own daughter's collecting the data,'" Foley said.

Some of the students in the program are on an academic track already, but others are children of local fishing families and "second-chancers" — kids who've been in trouble with the law or dropped out of school and need another opportunity to succeed.

Foley's been doing this since 2011, and he says the entire program is a win-win. Even if the students don't end up as researchers themselves, they end up with a highly desirable skill set; some have since become tour guides, members of the coast guard, or even TV presenters. And they can still sometimes be called in to help from time to time, too.

This isn't just feel-good fluff, either: Good community management might be the key to saving reefs.

In July 2016, the academic journal Nature published a worldwide survey of coral reefs. The most interesting things they found were called "bright spots," places where reefs were doing substantially better than anyone expected.

A healthy reef can support a gigantic network of different plants and animals. Photo from joakant/Pixabay.

The bright spots weren't just remote, humanless areas either. Some were located right next to huge human populations and fished heavily. So what was the link between the bright spots? Where there were bright spots, local communities were actively involved in monitoring and protecting the reef.

Programs like these may end up being the heart of future reef conservation.

"It's really all about empowering local communities to participate in the management of their natural resources and building trust between the communities," said Foley.

So in the future, if you go diving and find yourself surrounded by magnificent schools of fish, sea turtles, blooms of color, and all the other signs of a healthy coral reef, you might want to remember and thank these community researchers.

A few weeks ago, a woman came into the ChurchKey bar in Washington, D.C., to have a drink alone, but a male patron had a different idea.

He sat next to her and chatted her up. While the conversation seemed innocent enough at first, the bartenders working nearby sensed the woman was growing increasingly uncomfortable. If you're a woman and you've ever been to a bar by yourself, you're probably all too familiar with this scenario.


Photo via iStock.

However, what happened next was altogether different. According to Sam Nellis, the bar's manager, two bartenders on staff intervened three separate times to dissuade the man's advances. Finally, when he went in for an unwanted kiss, one bartender said, "Hey! Don’t you think you’re getting a little aggressive there?"

When the man got up to use the bathroom, they made sure the woman was OK, helped her exit the bar through the back door, and got her into an Uber so she could get home safely.

How did these bartenders know what to do? The answer can be summed up in two words: Safe Bars.

Photo by Safe Bars.

Safe Bars is a training program that teaches bar staff to recognize the subtle signs of an impending sexual assault and stop it before anyone gets hurt.

Why is that so important? Because 1 out of every 4 women will experience some form of sexual assault in their adolescence or early adulthood. And at least half of those crimes occur while the perpetrator was under the influence of alcohol.

Considering those statistics, it's not hard to see why a program like this is so important.


Photo by ChurchKey, used with permission.


"The training helps us to recognize the subtle difference between a person okay with physical contact and someone who does not want to be touched," Sam told Upworthy.

"For example, if someone is leaning away from the other person or if they have their arms crossed." But it's also about reading the dynamic of an interaction over a period of time. If a woman suddenly becomes withdrawn in a conversation with man, that should put employees on alert.

When an employee told Sam about the program, which is part of the advocacy group Collective Action for Safe Spaces (CASS) and Defend Yourself, he was immediately on board.

"Frankly, it was one of those moments where you think to yourself, 'How is this not already a thing that everybody does?'"

The program is new and is currently being funded by a $20,000 grant from the NFL, which has recently donated approximately $10 million to initiatives battling sexual violence, including this program, after being criticized over multiple incidents where players have been accused or convicted of assault.

The program is usually taught in two-hour sessions but can be customized to fit your establishment's requirements.

It involves learning how to identify subtle signifiers of sexual aggression and role-playing to practice curtailing it. While the training doesn't guarantee that every sexual assault can be stopped, it can certainly help bar employees be more alert and ready to take action.

While it's relatively early in Safe Bar's launch, the story from ChurchKey is encouraging.

Photo by ChurchKey, used with permission.

Safe Bars is already planning to expand the program to other cities, bringing it to bars that want to put an end to sexual assault in their establishments.

Sam can't wait until the system is a given in his city and hopefully, one day, the world.

"My dream for Safe Bars is that it becomes ubiquitous in D.C. I hope that one day it will be a prerequisite for operating an establishment that serves alcohol."