NASA recently organized a challenge called the NASA’s Centennial Challenge Mars Habitat Competition aiming of imaging a house that could enables explorers to stay on Mars. The Clouds AO , in collaboration with SEArch , won the first price with their Mars Ice House Project . They took for basis the fact that five million cubic kilometers of frozen water have been discovered on the red planet. They imagined an ice house printed in 3D that would enable four explorer to stay in. Making a prototype is the next step of this amazing project.