Pilots Notice Sunlight Behaving Unexpectedly on Long Flights

Airline pilots and cabin crew on long-haul flights have reported unusual sunlight behavior — early rises, delayed sunsets, hovering light, and unexpected illumination of clouds.
Researchers reviewing the reports say more study is needed, while observers ask whether our understanding of sunlight at high altitude is complete.

This video explores the strange patterns seen above the clouds — and why they’re sparking new questions.