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Radical thinks the time has come for solar-powered, high-altitude autonomous aircraft
TechCrunch· 14 小時前... aircraft aim to succeed where Facebook’s infamous Aquila failed by refining the ... ...
Small Business Birth Levels Remain In The Stratosphere
Forbes· 2 日前Small businesses (under 500 employees) are the backbone of the U.S. economy, accounting ...
Three Russians parachute from stratosphere to North Pole
Reuters· 6 日前Three Russians set a world record for parachuting from the Earth's stratosphere to ... ...
Ukraine Strikes Russia With Long-Range Bomber Balloons
Forbes· 2 日前What may look like a trivial harassment tool could be an ingenious, asymmetric weapon to boost ...