Contrails are clouds made of ice particles, which can be created when airplanes fly through cold, humid air. Persistent contrails are estimated to have a warming climate impact. Flight tests will ...

A new study finds it might be relatively affordable as well. A handful of studies have concluded that making minor adjustments to the routes of a small fraction of airplane flights could meaningfully ...

FARNBOROUGH—Airbus UpNext, the aircraft maker’s technology innovation arm, plans to flight test a hydrogen-burning engine at altitude on a powered glider early next year as part of research into ...