Morning Overview on MSN
A hummingbird in the Andes just set the vertebrate high-altitude flying record — hovering above 21,000 feet on air so thin it should have knocked the bird out
Somewhere above 21,000 feet in the central Andes, where the air holds roughly half the oxygen available at sea level and ...
SEATTLE – Boeing’s A160T Hummingbird unmanned rotorcraft flew for 18.7 hours on an overnight flight May 14-15, setting what the company believes is a world endurance record for a UAV in its weight ...
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