Fluffy rows of cirrus clouds created by the increasing number of jet contrails can sometimes fill half the sky and may significantly affect ground temperatures, according to a report in Thursday&#8… ...

Seeing white streaks across the sky emanating from a jet is normal, here's what they are and how they affect us.

WOODSTOWN, N.J. – It’s a big message from a small town: The government is spraying the skies with chemicals to control our lives – and maybe kill us. A billboard in this picturesq… ...

As I would view these white vapor trails, or as I later learned were termed "contrails," I would think of boiling a pot of water on the stove. As the water is heated and evaporates, it creates ...

Weather I went outside just now (8:30 pm Monday 1/20) and saw a long streak across the sky like a jet trail. Why would that show up at night? Is it because the moon is full?

Aeroplane vapour trails reduce the temperature extremes felt on Earth, says a study made possible by the events of September 11. ... Jet trails make climate milder. By Nicola Dixon.

It’s the helical jet from a runaway pulsar that’s streaking across the Milky Way at speeds reaching five million mph. But more extraordinary than that is how freakishly long this thing is.