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How to Sail on Sunlight | Because Space

AdultsHistoryNatureScience...
Sails have been helping us travel across water for centuries, but could this same idea help us travel across space?
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World's Lightest Solid!

AdultsConstructionMediaScience...
Aerogels are the world's lightest (least dense) solids. They are also excellent thermal insulators and have been used in numerous Mars missions and the Stardust comet particle-return mission.
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What Can The Most Powerful Satellites Really Do?

AdultsScienceSpaceTechnology
How powerful are satellites up in space right now? What can they do to help us on Earth?