A new German Aerospace Center study says the clouds formed in the wake of planes have an impact on the climate that's not being properly addressed.
A Navy probe revealed who was responsible for the contrails phallus.
On the season two premiere of Science Solved It, we dive into one of the most pervasive conspiracy theories: chemtrails.
Scientists are about to test technology that could reduce global warming. But conspiracy theorists are sending them death threats.
"We find this absolutely unacceptable, of zero training value."
Yes, there's a scientific explanation for chemtrails.
Englishman Chris Bovey uploaded a video to YouTube he claimed was evidence of a government plot in order to prank the people who believe in secret mind-control schemes.