The cause of the condensation trails, which are initially very thin and can only be observed directly behind an aeroplane at cruising altitude under certain conditions, is the rapid decrease in ...

A photo shows the view from an airplane flying above the clouds of smoke coming from the Feb. 3, 2023, Ohio train derailment.

Airplane soars skyward above fluffy clouds, under a bright blue sky.© JethuynhCan/Getty Images How High Do Airplanes Fly—and Why Gettyimages 912360406© AlexeyPetrov/Getty Images ...