On a warfront dominated by satellites, precision missiles and long-range drones, Ukraine has quietly opened a new chapter in ...

An MQ-9 Reaper drone crashed into the Mediterranean Sea last December after losing its propeller midflight, likely due to the failure of a ring necessary to secure the prop in place. (SrA Raya Feltner ...

Mykhailo Fedorov said the drone was powered by a motor built in Ukraine. Its reported speed nearly rivals the fastest high-speed trains in the world.

The four-propeller drone sitting briefly on a rocky and dusty surface in Central America in early March had an impressive diameter of nearly 7 1/2 feet. From afar, however, it appeared as just another ...