Rocket launches can create eerie patterns in the sky, from undulating bright-blue spirals to glowing “jellyfish” blobs. Here’s why they happen and how to spot them.

A mysterious light spiral over Europe on March 24 was caused by a SpaceX Falcon 9 rocket reentering Earth’s atmosphere.

A strange spiral light that appeared in the sky yesterday evening (March 24) is believed to have been caused by a SpaceX rocket launch.

Aliens, black holes and far-off galaxies were some of the suggested explanations for a spectacular spiral light which appeared in the skies over Yorkshire and Lincolnshire on Monday.

The gases ejected by the rocket froze almost immediately, creating a visible trail thanks to the reflection of sunlight.

Aliens, black holes and far-off galaxies were some of the suggested explanations for a spectacular spiral light which appeared in the skies over Yorkshire and Lincolnshire on Monday.

The gases ejected by the rocket froze almost immediately, creating a visible trail thanks to the reflection of sunlight.

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A large swirl of white light that temporarily outshone vibrant auroras in the Arctic last week was triggered by the death throes of a SpaceX rocket that deployed more than 50 satellites into space.