Rocket launches can create eerie patterns in the sky, from undulating bright-blue spirals to glowing “jellyfish” blobs.

A spiral in the sky caused a buzz over Britain and much of Europe on Monday. For some skywatchers, it looked briefly like it might be evidence of alien activity. But it was only Elon Musk's company ...

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

A giant whirlpool of light, known as a "SpaceX spiral," was recently spotted swirling across the night sky over Europe as a ...