Super bright rather large flash like a firework or super bright camera flash. no sound.... found a video on line of the exact same thing i saw, you can see it here, https://www.Youtube.Com/watch?V=kkhlo5mrnpa super bright rather large flash like a firework or super bright camera flash, any input as to what this is? random flashing very bright seemed pretty far away in altitude. the flashing was random, shortest 9 seconds, longest 23 seconds. i can't reason this away in my mind. i was so fascinated and trying to reason never even thought of going in and getting my phone to capture it. could not believe, and was happy to fine a vid of the exact same thing that someone posted. very cool!