2.1 – Where do you want to build your Moon Camp? Explain your choice.
In a lave tube at the Marius Hills region with a skylight (58 × 49m and 40m deep) and roof thickness of 20–25 m, at coordinates 14.2°N, 303.3°E. Such a habitat would be completely protected from radiation, extreme temperature variations, meteorites bombardment, static electricity and regolith dust. Avoiding the extremely low temperatures at the poles will save almost 30% of the power needed. Thus, large reductions in weight, complexity, special protocols and shielding compared to surface habitats are feasible, expanding science mission objectives and duration, allowing larger number of crew (working under routine conditions and improved psychology) and more payload mass to be landed for science purposes. Equator is the easiest site to land and in constant communication with Earth although lunar nights is a challenge for power. Nearby maria’s mature soil is rich in metals. Water (>500-700 ppm), N, H and C resources as pyroclastic deposits are significant at Aristarchus plateau. Most recent data showed widespread water abundance stored in impact glass beads.
2.2 – How do you plan to build your Moon Camp? Consider how you can utilise the Moon’s natural resources, and which materials you would need to bring from Earth. Describe the techniques, materials and your design choices.
During preparation terrestrial material will be carried, including self- deployable shelters, oxygen and water production/recycling units, one-month food, solar panels and charged batteries for the night period, air lock modules, aluminum, carbon fibers, mining crane, two robotic rovers, antennas, 3D printer, spacesuits, small quantities of oxygen, nitrogen, and hydrogen.
After leveling the tunnel floor, the selected segment will be shielded from the surface by impermeably sealing the skylight and then blocking the underneath lumen on either side with airtight walls. Fenestrations opened on the roof will be shielded with transparent ceramic from aluminum oxynitride for natural illumination along with lamps that emit visible and infrared, UV-A and UV-B light to better mimic sunlight. A pressurized area filled with breathable air of 1 atm will be created.
Permanent habitats will be constructed with regolith casts and 3D printing using lunar soil. Petralona camp consists of a central tower containing one elevator for heavy loads and one for personnel, beginning from the tunnel floor and expanding through the shielded skylight to the lunar surface into a dome structure protected from radiation by a 2-meter-thick regolith cover and having ceramic windows. It is the main entrance for crew and vehicles through an airlock module. Rovers can also airtightly dock there. On the surface are also the launch pad, solar plates and a protective shell with a rocket for emergent escape.
Habitats using a simple, low-cost orthogonal design will be made of durable lightweight materials, connected together and with the tower’s base parallel to the ground through airlock modules. These include a common leisure and activities area, private rooms for each person (as the need for personal space is of paramount importance), a control and communications center, laboratories, medical facilities, greenhouse, buildings for recycling systems, regolith processing, electrolyser, energy storage, maintenance garage and warehouse.
A ramp from the surface to the tunnel floor will be an alternative access. In the tunnel outside the walls will be the fuel tanks, the nuclear power plant and paleoregolith mines.
2.3 – How does your Moon Camp protect and provide shelter to your astronauts against the Moon’s harsh environment?
On moon’s surface dust, solar wind and static electricity of hundreds of volts as in polar craters along with extreme alternating temperatures between 127 C and minus 173 C will wear down the health of the crew, electronic devices, solar panels and other machinery. Significant operational, technological, and economical benefits result if a lunar base is constructed inside a lava tube. Our camp will be airtightly shielded from the surface environment in order to offer habitable circumstances inside with steady mild temperatures around 17 Celsius compared to the wildly fluctuating day/night temperatures on the Moon’s surface. Moreover, the whole internal outpost will be filled with breathable air pressurized at 1 atm and connected through pipeline with a region rich in water and volatiles. The roof of the selected lava tube is almost 25m and thus it provides absolute protection against micrometeoroids, meteorites, and cosmic radiation since the conventional radiation shield is only partially effective. It is also safe against moonquakes and has sturdy properties. The abundance of space permits incremental expansion of the base by connecting extra habitats through airlock modules and in case of a damaged part could simply be isolated from the rest by closing the shared hatches. Furthermore, being at the near-the-earth side at the equator level makes communication with earth unimpeded, protecting the crew from any emergencies, especially medical emergencies that require immediate robotic surgical intervention remotely controlled from a specialized team on earth. Due to the protected environment and maximum thermal insulation, the energy requirements are reduced, the production of food will be easier experimental farming and regolith cultivation feasible, and the needs for water, air and power smaller and more economical. Working in convenient, healthy, large habitats, without heavy spacesuits makes everyday life closer to that on earth upgrading their psychology and safety.