Not every high-flying jet produces a jet contrail. Conditions have to be just right. That includes the altitude, temperature, and moisture at flight level. Jet contrails are usually produced at ...

A bright object that streaked across the Texas sky during the day April 4, originally believed to be a meteor burning up as it entered Earth's atmosphere, was actually a flying jet and its contrail, a ...

What were all those white streaks painted across the blue sky of Lancaster County Thursday morning? At least a handful of residents expressed concerns. A Bowmansville man thought they were large ...

DENVER (CBS4) - Did you see the really cool, spiral-shaped cloud hovering along the Front Range early Wednesday afternoon? It was quite the talker on social media and while it's hard to say what ...

For three days after September 11, the Federal Aviation Administration grounded commercial aircraft in the U.S., stranding travelers, hindering mail delivery and interrupting courier service, but for ...

Did you notice how blue the skies were yesterday? Typically, a day or two before an incoming storm systems, jet contrails criss-cross across the sky overhead. As the world fights the COVID-19 pandemic ...

American Airlines and Google were able to cut contrails made by jets by more than half during a small trial, a move that could significantly reduce the global-warming footprint of the travel industry, ...