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