Fly to Mars
Launch a spacecraft from Earth to Mars and back again.
Rubble!
Save the Earth from asteroids.
Space Stage
Film yourself on the Moon, Mars, and more!
Sizemology
Resize objects until they're the correct relative size.
Planet Families 2
Build a solar system in 3d.
Solar Vision
Look at the Sun in different ways.
Rover Coder
Drive a Mars rover.
Planet Families
Build a solar system (original 2D version).
Matter Sorter
Is it a solid, liquid, gas, or plasma?
Star Maze
Be a photon, escape the sun.