Can someone put this in the “hilarious science” hall of fame? A group of researchers has published a study to tell the world what we assumed everyone knew was true: “Chemtrails” are not real.

All joking aside, “chemtrailers” (did I just coin that?) are out there, and they are kind of a nuisance. This is particularly true when they confuse and frighten other people about the source of those puffy white streaks that so often crisscross our sky. These researchers actually just did us a huge favor by publishing common sense — you didn’t think it was necessary, but alas, this is the world we live in.

Those clouds that form behind high-flying jets are condensation trails — or “contrails.” As a plane with very hot exhaust flies through the very cold upper-atmosphere, water vapor in the air condenses into water droplets. In other words, they are clouds made by planes.

You can test this science by going outside on a cold winter day and exhaling. See that cloud of breath? You just created your very own contrail.

However, there is a small but vocal population out there that believe these are not clouds. https://www.washingtonpost.com/news/capital-weather-gang/wp/2016/08/16/scientists-to-world-chemtrails-are-not-real/