Games
Play the sky.
A small library of interactive pieces that share the catalogue, the orbital math, and the same dark canvas as the rest of the site. More on the way.
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Live
Trivia
Test your knowledge of the deep sky.
Pick a subject, pick a difficulty, pick a mode — ten-question runs, endless streaks, or a sixty-second sprint. Ranked leaderboards by mode and category so you can chase your past self or the rest of the room.
Play View leaderboards -
Live
Launch Simulator
Plot a course to the planets.
An interactive 3D simulation of orbital trajectories. Pick a mission, pick a spacecraft, schedule your burns — and watch your craft thread the gravitational geometry from low-Earth orbit to flyby. The patched-conics physics is real.
Plan mission