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

Stargazers across the UK have been left puzzled by the sight of a spiralling glowing orb in the night sky. The mysterious ...

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 ...

Frozen fuel from the Falcon 9 rocket launched Monday created a luminous display for several minutes, and was seen by people ...

Astrophysicist Dr. Paul Sutter spoke with NBC News' Gadi Schwartz on the spectacular atmospheric event that a SpaceX rocket ...

Not quite, says the Met Office. This large glowing spiral was spotted in the night sky across the UK and Ireland on Monday evening. Image: Ivinghoe Beacon in Buckinghamshire. Pic: Keeley Williams ...

Mysterious markings were reported in the sky on Monday night, but the explanation for them is more manmade than extraterrestrial. A glowing blue spiral was spotted in European skies on Monday ...

Frozen fuel from the SpaceX Falcon 9 rocket created a luminous swirl that lasted for several minutes and could be seen from ...