Space Farming: What Growing Lettuce in Orbit Teaches Us About Surviving on Mars
Imagine biting into a crisp, green leaf of lettuce that’s traveled more miles than any vegetable on Earth—lettuce grown not in a field, but floating above our heads, in the emptiness of space. It sounds like something out of a sci-fi novel, but it’s real. Astronauts aboard the International Space Station (ISS) have successfully cultivated ...