Chapter 8

Planetary Base Planning

Lunar Base Plan

The Moon will be humanity's first space outpost. NASA's Artemis program plans to build a base at the lunar south pole by mid-2020s. Candidate locations include Shackleton Crater, Nobile Crater, and Connecting Ridge - areas where permanently shadowed regions (water ice) and permanently lit regions (solar power) are close together. Initial infrastructure: landing pad (flat, obstacle-free zone), power systems (solar panels, reactor), habitat modules (4-6 person capacity), ISRU facilities (water mining, oxygen production), communications antennas. Construction proceeds in 3 phases: 1) Unmanned cargo landings (2-3 missions), 2) Robotic assembly and commissioning, 3) Human occupation and expansion. Scientific goals include astronomy (radio telescopes), geology research, space technology validation, Mars mission preparation.

Mars Base Design

Mars has potential to become humanity's second home. Base site selection criteria: water access (subsurface ice), latitude (equatorial, mild climate), elevation (lower = denser atmosphere, easier landing), scientific value (past water evidence), sunlight (solar power). Candidate regions: Jezero Crater (currently explored by Perseverance rover), Arcadia Planitia (shallow subsurface ice), Deuteronilus Mensae (glacial region). Initial base starts with 6-12 people and gradually expands. Modules are underground or covered with regolith for radiation shielding. Mars atmosphere (95% CO₂) enables oxygen and fuel production - MOXIE technology validated.

Lunar South Pole Advantages

Why NASA's Artemis program targets the lunar south pole:

• Water Ice Access: Permanently shadowed region (PSR) craters contain hundreds of millions of tons of water ice - source of drinking water, oxygen, and rocket fuel.
• Permanently Lit Regions: Some highlands like Shackleton Crater rim receive sunlight 80-90% annually, enabling stable solar power.
• Moderate Temperature: Polar regions have less temperature variation than equator (equator: -173°C ~ +127°C, polar: -50°C ~ -230°C). Crater rims relatively mild at -50°C.
• Communication Visibility: Can select locations with nearly continuous Earth communication.
• Scientific Value: PSRs preserve early solar system volatiles (water, ammonia, CO₂), scientifically important.

Mars Landing Site Candidates

Location	Latitude	Advantages	Disadvantages
Jezero Crater	18°N	Ancient lake, sediments (possible life signs), currently explored by Perseverance	Rocky terrain, frequent dust storms
Arcadia Planitia	47°N	Shallow subsurface ice (1m depth), flat terrain	Cold temperature, less sunlight
Deuteronilus Mensae	45°N	Glacial region, abundant water, protected valleys	Rugged terrain, difficult landing
Hellas Basin	42°S	Low elevation (thick atmosphere), warm temperature	Low water accessibility
Valles Marineris	14°S	Possible subsurface glaciers, geological diversity, cliff caves usable	Complex terrain, landing risk

Self-Sufficiency Roadmap

Complete self-sufficiency is a gradual process over decades. 3-phase approach:

Phase 1 (0-10 years): Earth-Dependent - Receive 90% supplies from Earth, produce only local resources (water, oxygen). Population 10-20, focus on research and technology validation.

Phase 2 (10-30 years): Partial Self-Sufficiency - Produce 50-70% supplies locally including food (hydroponics), building materials (3D printing), energy (solar+nuclear). Population grows to 100-200, build industrial infrastructure.

Phase 3 (30+ years): Complete Self-Sufficiency - Produce 95%+ supplies locally, establish manufacturing (metal processing, electronics), own power plants, complete closed ecosystems. Population 1,000-10,000, Earth-independent, develop trade and tourism economy.

Terraforming Mars

Terraforming means transforming Mars to Earth-like environment. This is a centuries-long mega-project with ethical debates.

Main Stages:

1. Warming (100-200 years): Melt polar cap CO₂ ice to trigger greenhouse effect, use mirror satellites to concentrate sunlight, impact ammonia asteroids to release greenhouse gases. Goal: raise average temperature from -60°C to 0°C.
2. Atmosphere Modification (200-500 years): Convert CO₂ to O₂ using plants and microalgae, introduce nitrogen-fixing bacteria, form ozone layer. Goal: breathable atmosphere (20% O₂).
3. Water Cycle (concurrent): Melt polar caps, release groundwater, form seas and lakes, start water cycle.

Challenges: Mars' low gravity (escape velocity 5 km/s causes atmospheric loss), no magnetic field (solar wind strips atmosphere), enormous energy required, hundreds of years timeline. Alternative: Paraterraforming (only dome or underground spaces made Earth-like) is technically easier and faster but limited space.

Mars Natives: New Humanity

Generations born and raised on Mars will differ from Earth humans:

• Physical: Adapted to low gravity (0.38g), will be taller with weaker muscles. May not be able to return to Earth (bones and heart can't handle 1g).
• Identity: Will identify as Martians, develop distinct culture and values from Earth.
• Politics: May demand independence from Earth governments. Mars colonies will eventually become independent nations or planets.
• Evolution: Over thousands of years, genetic separation and natural selection may evolve Mars humans into a distinct subspecies.

Conclusion

The principles and technologies covered in this chapter on Planetary Base Planning are essential for successful space habitat operations. Each element is interconnected and requires an integrated approach. As space technology advances and experience accumulates, these systems will become more sophisticated and efficient.

Space habitation is no longer science fiction but becoming reality. Following the philosophy of 弘益人間 (Benefit All Humanity), we are opening a new era that will benefit all of humanity.