To survive on Mars, humans would need protective equipment and shelters to withstand the cold temperatures ranging from -120 to -5 degrees Celsius. Mars has a thin atmosphere composed mainly of carbon dioxide with small amounts of other gases. The atmospheric pressure is much lower than Earth. The gravity on Mars is about 38% of Earth's gravity. The atmosphere on Uranus consists mostly of hydrogen and helium with some methane. It has an average temperature of -210 degrees Celsius. Uranus does not have a solid surface, but instead has an extended liquid interior layer consisting of icy materials like water, methane and ammonia. Both Mars and Uranus present challenging environmental conditions that would require significant technological adaptations for human survival and