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Black Hawk Helicopter Flies Itself

EPA Awards Grants to Monitor Air Quality in 37 States

NASA's Moon Rocket Returns to Pad for Next Launch Attempt

'Bubble Barrier' Among Finalists for Prince William's Prize

MagniX Powers Point-To-Point Flight of an All-Electric Helicopter

Power Company to Test System That Stores Energy in Crushed Rocks

PG&E Backs Law That Would Ban Electricity-Conducting Balloons

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