Temporary restrictions on the arrival and departure of aircraft have been imposed at the Russian airports of Astrakhan, Kazan ...

由「蝙蝠飞机公司」(Pipistrel Aircraft)所设计的Nuuva V300 货运无人机，刚刚完成首次悬停飞行，这一里程碑的成果，使自动货运的实用化更近一步。该无人机具备600 磅(270公斤)的有效载荷能力，和300海里(555公里)的 ...

Scientists researching Alpine glaciers store ice in Antarctica. By analysing air bubbles in the ice they may be able to predict the future ...