A solar-powered surveillance drone with a wingspan larger than a Boeing 747 jumbo jet could fly for weeks or months at a time ...

Some of the incidents over Syria have lasted as long as two hours, US officials said. On Wednesday, July 5th, three Russian fighter jets harassed three US drones flying over Syria.

The drone fleet is also expected to be cheaper than developing new manned jets, Kendall said. The current goal is to have each cost about a quarter to a third of what an F-35 fighter costs now, or ...