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Oct 03, 14

A giant cone of inner tubes stacked together may someday help cargo, or even people, land on another planet or return to Earth. NASA calls the spacecraft technology HIAD -- Hypersonic Inflatable Aerodynamic Decelerator. Try your hand at operating one in this simulator game.

Oct 18, 12

Absolutely fascinating look at side-by side images showing changes in the landscape due to climate, weather, or human factors.

May 13, 11

really cool resource! click on the various parts of a space suit to learn interesting facts...

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