Photographer Julian Elnasser spotted the two aircraft over Death Valley earlier this year. The secretive RAT55 NT-43A is ...

The passenger used the Speedometer app to live-track the speed as the aircraft took off from London's Stansted Airport. The caption on the video posed a question: "What speed does an airplane do ...

China unveiled more than 100 cutting-edge radar systems at the 11th World Radar Expo in Hefei, spotlighting a new generation ...