The one note out of universe
Everything else on this site is written as if Concordia were built and inhabited in 2045. That is the design brief. It is a way to make the engineering concrete: when the station exists, you can ask what it sounds like, what it weighs and what it costs to run. The real science runs underneath. The station's numbers are chosen values from its engineering specification, and the story of how it came to be is invented.
The model in numbers
Concordia is simulated end to end at full scale, from the aft radiators to the spaceport, with the Earth, Moon and Sun where they would really be. Nothing below is a mock-up: every building is generated, placed and drawn by the simulation you can open from any page.
What the simulation holds
What you can visit
Every scene is listed in the atlas, with a link straight into the simulation.
What it is built from
The scene runs on Three.js. The models are made in Blender, the sound effects are generated with Woosh from Sony AI, the rooms you see through the residential windows are sixteen images generated with Krea 2 Turbo and lit by the engine, and the launch film is finished in DaVinci Resolve. The updates page lists every commit.
What the basis tags mean
Numbers and claims across the site carry a small tag that says what kind of claim they are. This section is out of universe, like the note above. The tags do not hedge the text. They say where each claim comes from, so you can tell a measured fact from a design choice. Turn them off with "Show basis" at the top of any page that has them.
| Tag | What it means |
|---|---|
| Established physics | Equations and demonstrated principles, with a real source |
| Design value | A number chosen for Concordia, from the project's specifications |
| Engineering challenge | Needs development beyond today's demonstrated capability |
| Story | The 2045 setting: history, people and events |
Author
Concordia is designed and built by David Veksler. The simulation, the engineering specification and this site share one repository: concordia-space-habitat on GitHub.
Credits and licence
The code is released under the MIT licence. Bundled models, textures, sounds and imagery carry their own licences and are credited on their own pages.