Report 02 · Project Artemis

A habitat is a system.

A coupled study of electricity, water, oxygen, hydrogen, carbon dioxide and heat for a four-person lunar habitat.

Active project / working studyAuthor · Terajoule modelling team

The Moon above a subtle horizon line — Project Artemis · Coupled lunar systems

Working study

Explore the model and its results.

The study connects mission demand, generation, conversion, storage and life support over a full model year. The public interface combines the report with model records and solved time-series data.

Crew: Four-person study case
Horizon: 8,760 hourly intervals
Resources: Six connected layers
Status: Technical review

Enter the Artemis study

Flow observatory

See the system from three angles.

Artemis Flow Map with the Electrolyser selected and its electricity, water, oxygen and hydrogen connections highlighted — **Flow map**Select an object to isolate its incoming and outgoing flows. Here, the Electrolyser connects electricity and water inputs with oxygen and hydrogen production.

Three-dimensional Artemis lunar habitat with equipment labels and resource-flow overlays — **3D environment**Explore where equipment sits, how it connects and how the lunar environment changes operating conditions.

Artemis Sankey diagram showing resource flows through generation, utilities, processing, storage and mission use — **Sankey**Follow the active resource balance through the selected hour, from generation and supply to mission use, recovery and reuse.

Open the Artemis Flow Observatory

Methodology

Assumptions, outputs and sources.

Assumptions

The working case represents a four-person habitat over 8,760 hourly intervals with six connected resource layers and a defined supply portfolio.

Outputs

Solved series, resource balances and data cards describe the current binary solution. They are not a mission guarantee or a certified engineering design.

Sources

Engineering references and source notes are exposed in the Artemis microsite. NASA and ESA references are used where relevant; the study boundary remains explicit.

Suggested citation: Terajoule (2026), Project Artemis: A habitat is a system, working digital study.

Study interface

Report, results and model records.

Flow map

Select an asset or connection to trace the flows entering and leaving it across electricity, water, oxygen, hydrogen, carbon dioxide and heat.

3D environment

Place the same assets and live flows in a spatial view of the lunar habitat, with equipment, resource overlays and hourly conditions kept in context.

Sankey

Read the balance of active pathways at the selected hour, with each band scaled within its resource and linked back to the selected object.

Model reference

Searchable records keep model objects, properties, assumptions and source notes close to the charts.

Publication boundary

What the current result
does and does not show.

Zero represented shortage is a model result under the current assumptions. It does not prove mission resilience. Oxygen surplus, crew-water assumptions, rover duty cycles and stress scenarios still need to be reviewed before the study is released.

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