What's Happening?
The European Space Agency (ESA) is developing a new 'space food' made from thin air and urine, aimed at supporting long-duration missions to the Moon and Mars. The project, led by Finnish startup Solar
Foods, involves creating a versatile powder called Solein through a gas fermentation process using microbes, air, and electricity. The key ingredient, urea from urine, provides nitrogen for protein synthesis in space. ESA plans to test this technology aboard the International Space Station (ISS) as part of the HOBI-WAN project, which focuses on developing sustainable food production in microgravity.
Why It's Important?
This innovative approach to astronaut food is crucial for enhancing the autonomy and resilience of human spaceflight, especially for missions with limited supplies. As space agencies plan for future missions to Mars, sustainable solutions like Solein are essential for reducing dependency on Earth-based resources. The ability to produce food in space could significantly lower costs and logistical challenges associated with long-haul space travel, making it a key capability for the future of space exploration.
What's Next?
ESA will initially develop the technology on Earth over eight months before testing it in a microgravity environment aboard the ISS. If successful, Solein could become a staple food for astronauts on long-duration missions. The project aims to reach operational capability by 2035, with the goal of producing Solein at various scales in space. This development could pave the way for more sustainable and efficient space missions, supporting the growing demand for space exploration.
Beyond the Headlines
The development of urine-based astronaut food highlights the importance of innovative and sustainable solutions in space exploration. It reflects a broader trend towards resource efficiency and environmental sustainability in space missions. The project also underscores the potential for collaboration between commercial and government sectors to lower barriers to space access and explore new frontiers.











