A mysterious spiraling blue light illuminated the night skies over Europe on Monday ... shows the glowing light spinning across the sky in what many social media commentators likened to a spiral ...

The rocket's frozen exhaust plume appears to be spinning in the atmosphere and reflecting the sunlight,' the Met Office explained.

Mesmerizing footage captured this blue spiral in the night sky in Croatia from a SpaceX Falcon 9 rocket. The phenomenon was likely caused by frozen fuel from the second stage of the launch and could ...