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