Doubts have been raised about the authenticity of a video showing 'figures' on cloud cover(X/@t_paranorm_chic) The video was purportedly filmed by a plane passenger on a commercial airline.

The aircraft, known as the Yunxing ("Cloud Rider"), is being developed by ... affecting the vehicle's ability to fly at high altitudes. After introducing the idea in 2018, Cui's team continued ...

The University of Cambridge study found one in 30 flight miles generated a "persistent" cloud when flying through particularly cold and humid airspace and suggests planes avoid these by rerouting ...

When planes fly through these cloud layers, they can create additional cooling around their wings. This cooling can trigger the supercooled droplets to freeze, transforming them into ice crystals.