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

Mysterious markings were reported in the sky on Monday night, but the explanation for them is more manmade than extraterrestrial. View on euronews ...

A stunning blue and white spiral spotted in skies across Europe late Monday was created by frozen fuel tumbling from ... of an "illuminated swirl" in the sky on Monday evening likely caused ...