Contrails conjure a sense of something overwhelming and ineffable, as terrifying as it is beautiful.

Pratt & Whitney has presented the results of its HySIITE program, which shows how water recovery can boost efficiency and reduce emissions in hydrogen propulsion.

If you look up on a clear day you will likely see man-made clouds somewhere in the sky, trailing behind jet aircraft high up in the atmosphere. Contrails, short for ...

Ever wondered about the white lines stretching across the sky? These are contrails—condensation trails formed by aircraft ...

Conspiracy theorists came out in force Tuesday afternoon to support a Republican bill that aims to ban “geoengineering,” citing the long debunked “chemtrails” conspiracy theory as evidence that ...

Iowa joins other GOP-led states that have looked to ban the controversial "geoengineering" concept of counteracting climate ...

A bill to ban weather modification in Florida based on conspiracy theories of chemtrails took another step toward becoming law Tuesday.

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Hurricanes and big snowstorms drive social media engagement. FILE - An aircraft crosses the vapor trails of another plane over Frankfurt, Germany, on April 19, ... [+] 2018. On Friday, Oct. 21 ...

But this comes at a cost: the higher-flying aircraft ... for condensation trail — are the white streaks in the sky behind planes. Airplanes create the lines of water vapor when they fly through ...

However, this is a highly debated geoengineering technique. While it reduces the rise in global temperatures, aerosol ...

The Senate Environmental and Natural Resources Committee voted 6-3 along party lines to advance the bill ( SB 56 ), which ...