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

A fuel dump by a SpaceX rocket caused a spectacular blue spiral above Western Europe on Monday, March 24. Here are the best photos of the unusual phenomenon.

The cause of the strange blue spiral is actually a SpaceX Falcon 9 rocket that blasted off from Space Launch Complex 40 ...

How Are Clouds’ Shapes Made? Explore the diverse world of cloud formations, from ground-level fog to high-flying cirrus ...

A bizarre blue spiral illuminated the night sky over Europe on Monday, March 24, sparking widespread speculation and confusion. Residents across the U.K., Croatia, Poland, and Hungary flooded social ...

NASA has released stunning new footage of clouds drifting across the Martian sky. A video from the Curiosity Rover captures red and green-tinged clouds moving at twilight. These iridescent 'mother ...