3.3.3. Rigid vessels
Rigid vessels built with light materials such as aluminum are the most common technology at the moment for space constructions. It’s a proven technology although its manufacturing might be difficult in Mars. However, it can be brought from Earth in small amounts specially to set up the first conditioned spaces.
· Proven technology with better shielding against radiation and micrometeoroids.
· Fully tested on Earth.
· Difficult to manufacture in Mars, would require expensive transport from Earth.
· Lower ratio volume/mass and thus larger launching cost.
· Smaller diameters and volumes due to launching fairing capabilities.