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An experimental heat shield developed by NASA has survived a trip through Earth's atmosphere while travelling at hypersonic speeds up to 7,600 mph (12,231 kph).
Why Barns Are Red - The Countdown #22
Autonomous Attack Drone Flies into History
The World's Lightest Material
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Wooden Solar Cells Shine Light on Cleaner Power
Urban Algae Turns Wastewater into Energy
Wooden Radio Broadcasts Sustainable Message
Lagos School Girls Harness the Power of Pee
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Unmanned Combat Jet Passes Flight Test
Tapping Into Thin Air
The First Flight of the Robobee
The World's Smallest Movie
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Gemini's Paraglider Landing System
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Gemini's Paraglider Landing System
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