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