Aviation contrails cost over 4 billion annually in climate damage, rivaling CO₂ emissions. 2-3% of flights cause 80% of ...

Aviation's climate impact is partly due to contrails—condensation that a plane streaks across the sky when it flies through ...

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 ...

A May 10 Instagram video (direct link, archive link) shows a blue sky with two white streaks across it. One is significantly larger than the other. "Chemtrail vs contrail and the moon as a witness to ...

Airplanes form invisible ice clouds that trap heat. Study explains why contrails matter and how aviation warming has been ...

Many of us enjoy flying to new places for vacation, to visit family and friends, or to connect with work colleagues. Those flights, particularly the longer, high-altitude flights, contribute ...

Last week while I was out taking other pictures around sunset, I looked up and saw a gull sitting on a light pole. I like gulls OK, but it was the plane behind the bird that really caught my eye.

Airbus’ innovation arm UpNext has conducted an 100% hydrogen-powered flight of a modified glider it is using to study contrails produced by hydrogen propulsion systems. Airbus said on 16 November that ...

The white trails left by high-flying airplanes may be a pretty sight in a blue sky, but bomber crews dislike them for good reason: an airplane may look from the ground like an almost invisible speck, ...

You don’t have to be an aviation enthusiast to know that airplanes, even when they fly at a altitudes that do not allow observation with the naked eye, usually leave signs of their passing. They’re ...

The challenge of addressing aviation’s non-carbon dioxide emissions is receiving greater attention, with the climatic impact associated with tell-tale signs in the sky coming under increased study.

The analogy I make is that on a cold day, you see your breath—it’s the same physics. The water in your breath is in gas form, but it condenses to form liquids. That’s the visible part of the contrail.