Scientists are investigating unconventional materials such as yeast and jello to construct habitats for future Mars missions. These bioengineered substances could provide lightweight, flexible, and self-healing structures that support human life on the Red Planet. Using biological materials may reduce the need to transport heavy building supplies from Earth, addressing one of the major challenges of interplanetary colonization. This approach also opens possibilities for habitats that can adapt and regenerate, improving long-term sustainability for astronauts. While still in early research stages, these findings highlight the innovative directions being pursued to enable human presence on Mars.