A medical transport jet crashed in Philadelphia, killing all six aboard. Here's what to know about air medical transport.

The Deep South of the United States was hit with a rare snowstorm, the result of a collision of air pressure systems moved by ...

As the Arctic rapidly warms, the temperature difference between the polar region and lower latitudes decreases, which weakens ...

Boom is convinced it can overcome the barriers that grounded the Concorde and make supersonic travel affordable and greener.

Boom Supersonic's XB-1 demonstrator craft will break the sound barrier for the first time during a Jan. 28 test flight, and ...