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Space simulations

Space Challenges

Put your orbital mechanics and spaceflight knowledge to the test. Launch satellites, stabilize orbits, design rockets, and analyze satellite imagery.

Solved a challenge? Share your solution on Discord and compare approaches with the community.

Active Challenges

Hard

Launch a Satellite into Geostationary Orbit

Perform a Hohmann transfer to place your satellite at exactly 35,786 km altitude with zero inclination. Match orbital period to Earth's rotation.

Orbital Mechanics | ~6 min
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Hard

Create a Stable 3-Body System

Position three gravitational bodies so they orbit in a stable configuration for at least 100 time steps without ejection or collision.

Gravitational Dynamics | ~8 min
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Medium

Design a Rocket That Reaches Mars

Set fuel mass, exhaust velocity, and payload to achieve the delta-v needed for a Mars transfer orbit. Apply the Tsiolkovsky rocket equation.

Rocket Science | ~4 min
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Easy

Segment 90% of Vegetation in Satellite Image

Use the satellite image segmentation tool to identify and label vegetation regions. Achieve at least 90% accuracy on the sample image.

Remote Sensing | ~3 min
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Personal Records

Coming soon — your best times and scores will be tracked here using local storage. Complete challenges to start building your record.

Submit a Challenge

Have an idea for a new space challenge? Open an issue on GitHub.

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