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