This is a fairly uncommon phenomenon called the Kopp–Etchells effect. I’ve only seen this online until l got to witness it tonight here at Pensacola International Airport with arriving V-22 Ospreys. The sparkles are caused by dust particles striking the rotor blades. @rzweather pic.twitter.com/0PIwsFkN03
— Asa Schlobohm (@SchlobohmAsa) April 12, 2025
