Growing Food in Space Requires Unconventional Methods

Growing food in space is a crucial aspect of long-term space missions, but it's a daunting task. The harsh environments on the Moon and Mars, with their irradiated surfaces, thin atmospheres, and lack of soil, make it challenging to grow plants and animals. However, researchers are finding creative solutions to this problem, including using human waste as a vital resource.

One such solution was popularized by the movie "The Martian," where the protagonist, Mark Watney, uses his own sewage to grow potatoes. While this may seem like science fiction, it's actually based on real-life research. In 2015, the International Potato Center and NASA conducted experiments that showed it's possible to grow potatoes using human waste.

More recently, a team of researchers led by Harrison Coker of Texas A&M University, in collaboration with NASA, has been exploring the use of recycled sewage products to grow plants in simulated lunar and Mars environments. The team, headquartered at Kennedy Space Center, is part of NASA's Bioregenerative Life Support Systems (BLSS) program, which aims to develop sustainable life support systems for long-term space missions.

The researchers used a solution of recycled sewage products, including water, carbon dioxide, and nutrients, to simulate the conditions on the Moon and Mars. They found that this solution could support plant growth, even in the harsh conditions of the lunar and Martian environments.

"This research is a crucial step towards developing sustainable life support systems for long-term space missions," said Coker. "By using recycled sewage products, we can reduce the amount of waste that needs to be stored or disposed of, and create a more closed-loop system that can sustain life for extended periods."

The use of human waste as a resource is not new to space exploration. In the 1990s, NASA's Space Shuttle program used a system called the Water Recovery System (WRS) to recycle wastewater, including urine, into drinking water. However, the use of human waste as a fertilizer is a more recent development.

The BLSS program is also exploring other ways to use human waste as a resource, including converting it into energy and using it as a component of 3D printing materials. These technologies have the potential to revolutionize the way we approach space exploration, making long-term missions more sustainable and self-sufficient.

As space agencies plan for future missions to the Moon and Mars, the use of human waste as a resource is likely to play a critical role. By developing sustainable life support systems, we can reduce the amount of waste that needs to be stored or disposed of, and create a more closed-loop system that can sustain life for extended periods.

In the near future, NASA plans to send astronauts to the Moon and Mars, where they will need to grow their own food to sustain themselves for extended periods. The research being conducted by Coker and his team will be crucial in making this possible.

While the idea of using human waste as a fertilizer may seem unappealing, it's a vital step towards making long-term space missions a reality. As we continue to explore and push the boundaries of space travel, we'll need to find creative solutions to the challenges we face. The use of human waste as a resource is just one example of the innovative thinking that will be required to make humanity a multi-planetary species.