A large, bright blue spiral spotted over Europe on Monday night sparked chatter on social media about what might have caused the mysterious vortex. Videos posted on X showed a blue orb in the ...

A large, bright blue spiral spotted over Europe on Monday night sparked chatter on social media about what might have caused the mysterious vortex. Videos posted on X showed a blue orb in the ...

0:36 Glowing spiral floats through U.K. night sky People across Europe witnessed a mysterious glowing blue spiral in the night sky this week, and scientists say they think they know what caused ...

A mysterious spiraling blue light illuminated the night skies ... or 9 p.m. local time, shows the glowing light spinning across the sky in what many social media commentators likened to a spiral ...