Pilot films extremely rare natural phenomenon – blue flash of light shoots through the sky. The glow, which a pilot filmed during a night flight, is a so-called "blue jet," a rare weather phenomenon.
The existence of this actively researched natural phenomenon has not been known for long and its origins are not yet fully understood. The phenomenon is almost never observed from the Earth's surface because, according to Nerdist, blue jets form at an altitude of 80,000 feet (24,384 meters) above sea level.