Stargazers across Europe saw a strange and mysterious blue spiral in the night sky that was likely caused by a SpaceX Falcon 9 rocket's launch.

It may have an eerie, UFO-like appearance, but this mysterious blue spiral in the sky has a far more mundane explanation. The spectacular sight – which baffled skygazers over Hawaii – is ...

A mysterious blue spiral dazzled viewers who saw when it appeared in the sky above the Big Island of Hawaii. The spiral stemmed from rocket fuel from a SpaceX launch.

Spectacular blue spiral light from SpaceX rocket captured on video A spectacular spiraling blue light was captured in the sky from fuel off the SpaceX Falcon 9 rocket on Monday.

Stargazers in parts of Europe were stunned by an unusual sight on Monday evening: a large, glowing blue spiral in the sky.

A SpaceX rocket launch from Florida on Monday afternoon produced a dazzling display in the night sky above Europe, leading to some people asking Elon Musk what they were witnessing.

The Princess of Wales matched with her daughter in a sky blue ensemble.

A glowing spiral appears in the night sky near Dalby-Viggeby in Sweden on Monday. (Bertrand Ilhe/AFP/Getty Images) ...

A light blue spiral resembling a galaxy appears amid the aurora for a few minutes in the Alaska skies near Fairbanks. The spiral was formed when excess fuel that had been released from a SpaceX ...

People across Suffolk were left bemused after a strange blue spiral was spotted in the sky across the county.