They developed a miniaturized traveling-wave tube (TWT), a specialized vacuum tube that amplifies radio frequency (RF) signals in the microwave range. The crucial component for radar systems interacts ...

Engineers have successfully tested a new air conditioned Tube train in tunnels deep beneath London after its launch was postponed for up to a year. Technical problems identified on a prototype ...

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.

ore than 99 per cent of Air Canada flight attendants have voted in favour of strike action, their union said Tuesday, setting the stage for a possible work stoppage that could lead to thousands of ...

A statewide air quality advisory remains in place for Aug. 5. Officials say wildfire smoke may dissipate by mid-week. Check out the air quality map.

The Canadian wildfires are impacting the air quality in Erie, which is in the orange level. Here's what you should know before going outside.

A driver crashed a car at the main gate of Davis-Monthan Air Force Base on Friday, prompting base security to open fire.

Chicago officially had the worst air quality in the world for a few hours Thursday. As a haze of Canadian wildfire smoke blanketed the metro area, no other major city in the world had air ...

The DNR issued an air quality alert Thursday for Iowa due to smoke from Canadian wildfires, making it dangerous for some people to be outside for extended periods.

Canadian wildfire smoke is drifiting across Michigan. As of July 31, the entire state is under an advisory for unhealthy air.

Air Canada flight attendants are holding a strike vote on whether to give the union a mandate for job action, with Aug. 16 the earliest date a strike notice could be given.

Almost 20 percent of air traffic control trainees fail to complete training at their first tower or center, slowing efforts to rebuild the workforce.