Heat Pipes are used as a simple way to reduce temperature inequities and transport heat from hot to colder parts of aerospace structures. By choosing an adequate heat transport mean, arrangement, and thickness, heat pipes could have the added value of shielding crews from ionizing radiation coming from space, and also allow bulding the spaceship or high altitude flying airplanes' structures as single piece hulls, the way ferrocement is used in boats, or composites in aircraft, provided the case the right material for this use is defined and found