Two of the most intriguing questions that captivate the minds of space enthusiasts of all ages revolve around fundamental aspects of lifeLife supportLife support systems: food and bathrooms. People are curious about the taste of food in space, what can be consumed, how astronauts interact with their meals, and the perennially amusing inquiry about the logistics of bathroom activities in space. We seek to understand how lifeLife in space differs from our experiences on Earth, yearning for a blend of familiarity and uniqueness. These aspects not only fuel our curiosity but also bind us to the dream of venturing into space, whether as tourists or astronauts. Their significance deepens as we strive to develop the capabilities to sustain human lifeLife in the challenging environment of outer space, away from the safety of our Earth—an environment shaped by giant ecosystems and balances that have evolved over billions of years.