The program last set an altitude record for a subsonic aircraft of any kind on Sept. 2, 2018. Pilots Jim Payne and Tim Gardner flew the Perlan II to an altitude of 76,124 ft., topping the previous, ...

American and German helicopter manufacturers began experimenting with mounting tip jets on the ends of helicopter rotor ...

At the bottom of a swimming pool on MIT’s campus, researchers keep testing a strange glider. The glider doesn’t have a ...