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EXTREME Space
Did you know ... to survive a landing on Mars, a spacecraft must have three zeroes off its speed in only six minutes? NASA's twin Mars Exploration Rovers will need both parachutes and rockets to slow down from about 19,000 kph (12,000 mph) as they enter the Red Planet's atmosphere to less than 19 kph (12 mph) before they reach the surface.
More on Mars >>

Alien Safari
Discover some of the most extreme organisms on our planet, and find out what they are telling astrobiologists about the search for life beyond Earth. View Presentation >>

Design an Ion Engine
Ion Engines are the most exciting new rocket propulsion system since the Chinese invented the rocket about a thousand years ago.

These activities should help you understand how Ion Engines work. Before you can understand the entire Ion Engine, you need to understand some basics about electric charges.

Play the first three activities to learn about electric charges. Play Games >>

Art Gallery
Featured Drawing: Mars
Artist: Devon
5th Grade