Rover Coder
Drive a Mars rover
Sizemology
Resize objects until they're the correct relative size.
Planet Families 2
Build a solar system in 3d.
Matter Sorter
Is it a solid, liquid, gas, or plasma?
Fly to Mars
Launch a spacecraft from Earth to Mars and back again.
Silly Scripts
Write a silly story
Can You Find...
Search for features on the surface of Mars.
Our Place in Space
You are out there.
Drake Equation
What are the chances that we're not alone?
Solar Maze: The Great Escape
Escape from cores of stars.
Space Challenge Quiz Show
Play some trivia
What if it hit my town?
Drop a rock on someone
Magneto Bowling
Knock down pins with a proton ball.
Solar Vision
Look at the Sun in different ways.
Wrath of Ra
Smack Earth with solar events.
How Big are Martian Features?
Drop objects onto the surface of Mars.
Winogradsky Column
Create a bacterial community.
Near and Far
Arrange objects from closest to farthest.
Earth or Mars?
Identify images by the planet they were taken on.
Looking for Life
See if you can recognize life.
Planetary Pinball
Send balls along magnetic field lines
Listening for Life
Are these sounds natural or intelligent?
Planet Plunge
Send a probe into Jupiter's core
Magneto Mini Golf
Play golf with charged particles.
Risky Business
Arrange dangers from lowest to highest
Drive a Rover
The Sojourner/Pathfinder mission.
Small and Large
Arrange objects from smallest to largest.