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

A glowing, swirling spiral of blue and purple was seen across the UK and also in parts of Europe on Monday night. But what ...

If you have the right angle, especially in the evening hours, the pink hue that is superimposed with the dark blue sky produces a purple,' Rossio said. 'This is often the case if you have low ...