High-Altitude-Long-Endurance (HALE) Unmanned Aerial Vehicles (UAV) operating at low Reynolds numbers face significant challenges from atmospheric gusts, which can intensify flow separation and induce ...

Wingtip curves are now a key feature of modern aviation. Though they seem like a design detail, they have saved the industry billions and reduced air pollution. The Secret of the Curved Wing: If you ...

As one blast of Arctic air pushes out to sea, already a new surge of cold air, driven by a breakdown of the polar vortex, is likely to expand from central Canada and through the midwestern and eastern ...

If you’ve ever wondered why winter sometimes flips from mild to brutally cold, the answer might be hiding 20 miles above your head. That’s where a rare atmospheric phenomenon called sudden ...

Scientists are still trying to understand the atmospheric disturbances. A significant change in the atmosphere means the weeks after Thanksgiving could be colder and snowier than normal across ...

High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...

Something unusual may be brewing in the stratosphere, and meteorologists say it could change the course of the winter forecast. The atmosphere is at a "critical juncture," and what happens in November ...

A harsh drop in temperatures is being delivered to the eastern two thirds of the country thanks to a polar vortex dipping down from the Arctic. Record cold high temperatures on Monday and Tuesday are ...

WASHINGTON -- The wingtip of an American Eagle plane hit another American Eagle plane carrying several U.S. Congress members Thursday afternoon at Ronald Reagan Washington National Airport, the ...

Student demonstrators who gathered in Belgrade on March 15 were panicked by a loud, strange sound some described as "creepy." The audio blast, which sent them scrambling for cover, has stirred ...