Master every world in a level — pass its Easy and Medium quizzes — to unlock the next, more powerful rocket and travel deeper into space!
Level 1 rocket
Your very first rocket! Perfect for blasting off to the Sun and the inner worlds.
Level 2 rocket
Ion drives carry you to orbiting outposts, asteroids and Mars.
Still to master: The Sun, Mercury, Venus, Earth, The Moon
Level 3 rocket
A nuclear-powered craft that crosses the asteroid belt to giant Jupiter.
Still to master: ISS, James Webb Telescope, Bennu, Mars, Phobos
Level 4 rocket
Built to glide past the gas giants and their icy ocean moons.
Still to master: Vesta, Ceres, 243 Ida, Dactyl, Halley's Comet, Jupiter, Io
Level 5 rocket
An icebreaker for the tilted ice giants and the first dwarf planets.
Still to master: Europa, Ganymede, Saturn, Titan, Enceladus
Level 6 rocket
A courier for the far Kuiper Belt, the nearest exoplanets and bright stars.
Still to master: Uranus, Neptune, Triton, Pluto, Eris
Level 7 rocket
A deep-space drifter that reaches supergiant stars, nebulae and other galaxies.
Still to master: Makemake, Haumea, Proxima Centauri b, TRAPPIST-1e, Sirius
Level 8 rocket
A legendary warp ship that dares to approach the supermassive black holes.
Still to master: Betelgeuse, Orion Nebula, Pillars of Creation, Crab Nebula, Andromeda Galaxy
💡 Tip: Rockets unlock by mastery, not points — pass every world’s Easy + Medium quiz in a level (4/5 or better). Hard quizzes and perfect scores still earn bonus points for the leaderboard!