Credits
Cosmo is built on the work of scientists, open-data projects and 3D artists. Thank you to all of them.
Space data
Every fact, number and quiz answer in Cosmo is based on these sources and was fact-checked in 2026. Cosmo uses their data; it isn't made or endorsed by NASA, ESA or Wikipedia.
- NASA NSSDCA Planetary Fact Sheets: National Space Science Data Center
- NASA Science: Solar System Exploration
- ESA: European Space Agency, Space Science
- Wikipedia: celestial bodies and space exploration
3D planet models
The 3D models in Cosmo's planet viewer come from artists on Sketchfab and are used under the Creative Commons Attribution 4.0 licence (CC BY 4.0). We optimised them for the app: fewer triangles, compressed geometry and textures packed into the file, so they load quickly and work offline.
| World | Model | Artist |
|---|---|---|
| The Sun | Sun | SebastianSosnowski |
| Mercury | Mercury (planet) | SebastianSosnowski |
| Venus | Venus v1.1 | uperesito |
| Earth | Earth | Gravity Jack |
| The Moon | The Moon | SebastianSosnowski |
| Mars | Mars | JanesBT |
| Phobos | Fobos | uperesito |
| Deimos | Deimos | uperesito |
| Ceres | Ceres | Mieke Roth |
| Jupiter | Jupiter - Free Downloadable Model | murilo.kleine |
| Io | Io | uperesito |
| Europa | Europa | uperesito |
| Ganymede | Ganymede (moon) | SebastianSosnowski |
| Saturn | Saturno v1.1 | uperesito |
| Titan | Titan | uperesito |
| Enceladus | Enceladus | Mieke Roth |
| Uranus | Uranus | SebastianSosnowski |
| Neptune | Neptune | SebastianSosnowski |
| Triton | Triton | uperesito |
| Pluto | Pluton | uperesito |
| International Space Station | ISS | uperesito |
Fonts
All three typefaces are licensed under the SIL Open Font License 1.1. This website uses reduced copies of them that contain only the characters it needs.
- Outfit for headings and the Cosmo name
- Andika by SIL International, designed for children learning to read
- Space Mono for small labels
Music
Cosmo's soundtrack is an original piece made for the app.
Trademarks
App Store and the App Store badge are trademarks of Apple Inc. Google Play and the Google Play logo are trademarks of Google LLC. NASA and ESA are named here as data sources only.