Contrails — those lines of wispy white clouds that follow some jets — may not be so harmless. Airlines and scientists are coming to a consensus that the water vapor trails created by airplanes at high ...

Modern aircraft are producing longer-lasting contrails that warm the planet faster than those created by older aircraft, presenting a "double whammy" for the aviation industry's carbon reduction ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. MYSTERY WIRE — The so-called chemtrail ...

Online military forums like SecretProjects went wild last year over a grainy, indistinct image of an aircraft. Basic digital enhancement showed a bat-winged craft unlike any known U.S. military plane, ...

Florida has banned "geoengineering," or weather modification, in response to conspiracy theories about "chemtrails." Scientists explain that the white streaks behind jets, called contrails, are ice ...