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After damaging a rotor blade, NASA’s Ingenuity helicopter mission ends on Mars
CNN via Yahoo News· 3 months agoThe Ingenuity Mars helicopter, the first aircraft to operate and fly on another planet, has come to...
Yellow jerseys of the fireline: A day fighting wildfires can require as much endurance as riding the...
The Conversation via Yahoo News· 4 months agoTwenty-five years of research show what it takes to fuel wildland firefighters through an average...