Play back these sounds and see if you can decide which are natural and
Try to build the perfect solar system. See how different planets react
with one another, and see how some planets are important in keeping the
solar system stable. Play alone, or team up with other online players! Requires Adobe Flash
Create a virtual Winogradsky Column! Move the microbial blobs into place
and see if they survive.
How many planets out there could support life? Use the Drake Equation to