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Architecture Diploma Project · École d'Architecture de Paris Conflans · UPA 4

A Permanent
Lunar
Base

Architecture beyond the Earth

Jean-Philippe Charon  ·  Architect DPLG  ·  1993 – Present

Chroniques d'Architecture · 3-part series · 2025 "The Architecture of the Moon: they arrive where I was in 1993" Read the article →

This project drew in 1993 what NASA is building today — Mission Artemis

"Humanity will not remain on Earth forever, but in its pursuit of light and space will first timidly venture beyond the atmosphere, and then conquer the entire solar system." — Konstantin Tsiolkovski (1857–1935)
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Composition of the project presentation drawings — JPC 1993
Presentation drawings Composition of the project presentation drawings — JPC 1993

A founding project

Like Christopher Columbus approaching a new world, this project imagines the first milestones of a permanent human presence on the Moon.

Context READ →

More than fifty years ago, the Apollo missions demonstrated the feasibility of lunar travel. This project explores the next step: designing a durable, habitable and evolving architecture on the surface of the Moon, in response to the energy, scientific and human challenges of the 21st century.

Architectural approach READ →

The project integrates the radical constraints of the lunar environment — absence of atmosphere, radiation, extreme thermal variations — as founding data of the architectural project. The objective: to create a pleasant living environment, in harmony with a high-technology universe, while expressing the symbolic dimension of a new industrial era.

Man and the robot READ →

The Man/Robot complementarity structures the project. The robot performs specific tasks in hostile environments; man ensures reconfiguration, programming and decision-making. This synergy directly determines the spatial organisation of the base and the hierarchy of spaces.

Ambition READ →

Beyond the technical project, this lunar base is conceived as a lever for international cooperation, a catalyst for the terrestrial economy and the first link in an extended human presence in the Solar System.

1/6
Lunar gravity
±280°
Thermal range (°C)
384 500
km from Earth
14 j
Lunar day/night cycle

Understanding the Moon

Before designing, one must understand. The physical and environmental characteristics of the Moon condition every architectural choice.

An atmosphere-free environment

The absence of a lunar atmosphere implies a total absence of water, extreme thermal variations (+120°C / −160°C) and direct exposure to solar and cosmic radiation.

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The radiation challenge

Solar and cosmic radiation constitute the major risk for human life on the Moon. Radiation protection becomes a structuring principle of lunar architecture.

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The riches of the lunar soil

Lunar regolith contains 30% metals, 20% silicon and 40% oxygen. These local resources are the key to the autonomy of any human colony.

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Energy from the cosmos: SPS

Solar Power Satellites represent the opportunity to permanently capture solar energy and redistribute it on Earth, transforming the Moon into a global energy base.

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The stages of conquest

From Sputnik (1957) to the MIR station, via Apollo and Skylab, a look back at the major milestones that made the idea of a permanent lunar base possible.

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Living on the Moon

Lifestyle, weightless gardens, psychological balance, physical exercise: the design of the base must respond to human needs as much as technical ones.

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Colonisation phases

The colonisation process unfolds in three progressive phases, from the minimal base to the autonomous lunar city.

Ph.1
Rudimentary base — Housing module (5 persons) + scientific and pilot modules
Initial phase
Ph.1
Scientific module for research and use of lunar materials
Initial phase
Ph.1
Pilot module for extraction and use of lunar oxygen
Initial phase
Ph.2
Operational base — 10 to 20 persons in permanent residence
Intermediate phase
Ph.2
Advanced oxygen production, botanical, geoscientific and biomedical units
Intermediate phase
Ph.3
Advanced base — 100 to 200 persons, management, medical, fundamental research sectors
Advanced phase
Ph.3
Cosmodrome, solar power plant, solar furnace, radio telescope, greenhouses and living spaces
Advanced phase
Ph.3
Satellite outposts, ore extraction and shipping site
Advanced phase

The architectural project

Sited at the lunar south pole, in a large crater in the Leibnitz mountains — oriented towards the centre of our galaxy, symbolically open to the Universe.

Site

Large crater in the Leibnitz mountains — South pole, near side of the Moon. Reduced thermal range (Sun always on the horizon), facilitated access by polar orbit station passing every 2 hours.

The proximity of both sides of the Moon allows an observatory on each side: radio-astronomy on the far side, permanent observation of Earth on the near side.

Far-side observatory

Radio-astronomy without terrestrial interference. Unique ideal site in our solar system.

Polar orbital station

Passes above the base every 2 hours. Permanent Moon–Earth link.

Cosmic orientation

The base is symbolically oriented towards the centre of our galaxy, open to the Universe.

The project rendered by AI

Three images generated by artificial intelligence from the drawings, sketches and model of the original 1993 project.

The developed crater —
the scale of urbanism

In 1993, the project envisaged an urban logic: autonomous bases multiplying in a ring around the crater, connected by pressurised galleries. The composition, initially concentric, was designed to evolve into a spiral — rotating in the same direction as our galaxy. A line symbolically crossing the crater rim marked the projection of the project outward.

Aerial view of the developed lunar crater — autonomous bases in a ring · AI image 2025
Project projection at crater scale 1993 model / AI image 2025

The manifesto-façade —
junction of floor and slope

The architectural concept rested on a precise siting: at the junction between the flat crater floor and its rising slope. The inclined façade, following the natural terrain gradient, became the architectural manifesto — an interface between the inhabited interior and the lunar void, between underground protection and the solar exposure required for energy.

Exterior perspective of the lunar base — inclined façade · AI image 2025
Exterior perspective AI image 2025

The interior street —
liveability at the human scale

The most demanding architectural challenge was not technical — it was human. The project responded with a generous, light-filled, planted circulation space serving the housing units like an interior street. A spatial quality no engineer would spontaneously have written into the brief — but which any architect considers fundamental.

Interior perspective — planted circulation space · AI image 2025
Interior perspective AI image 2025

Sources & references

A selection of books, journals and documents that informed this diploma project.

01
Le Système Solaire Kendrick Frazier — Time Life
02
Les Planètes, ces autres terres du ciel Olivier Gonsac — La Villette
03
La saga de l'espace Alain Dupas — Gallimard
04
De la Terre à la Lune Jules Verne — Hetzel
05
La Lune François Link — Que sais-je ?
06
La poétique de l'espace Gaston Bachelard — PUF
07
Habiter la mer Jacques Rougerie — Éditions Maritimes
08
Lunar Bases and Space Activities of the 21st Century W.W. Mendell — NASA
09
Ciel et Espace Revue — n°219 (1987) à n°266 (1992)
10
Cyrano de Bergerac Edmond Rostand
11
Histoires de Lunes Alexandre Cailler — Hermé
12
L'homme dans l'espace Jean-Pierre Penot — Presses Pocket