Aviation still has an opportunity to mitigate the impact of contrails on atmospheric warming—but the clock is ticking and time is running out, an international research study warns. While there ...

A rocket launched from Vandenberg Space Force Base northwest of Santa Barbara at an ideal viewing time, providing a spectacle in the sky over LA.

Contrails are initially thick, bright, highly reflective clouds, but over time they morph into wispy cirrus clouds. Are they then warming or cooling clouds?

Condensation trails, or contrails, are long, thin clouds that can form behind airplanes at cruising altitude. They are created by jet engines.

We've been getting a lot of calls about a streak of light and contrail that was over the evening sky on Sept. 14. Now, we are getting some answer over what may have caused it.