Contrail
Videos
Contrails or vapour trails are line-shaped clouds produced by aircraft engine exhaust or changes in air pressure, typically at aircraft cruising altitudes several kilometres/miles above the Earth's su
Contrails of a Boeing 747-438 from Qantas at 11,000 m (36,000 ft)
A vintage P-40 Warhawk with propeller tip vortex condensation
A distrail is the opposite of a contrail
Cloud
Videos
In meteorology, a cloud is an aerosol consisting of a visible mass of miniature liquid droplets, ice crystals, or other particles, suspended in the atmosphere of a planetary body or similar space. Wat
Cloudscape over Borneo, taken by the International Space Station
Windy evening twilight enhanced by the Sun's angle. Clouds can visually mimic a tornado resulting from orographic lift.
Cirrus fibratus clouds in March
High cirrus upper-left merging into cirrostratus right and some cirrocumulus far right