Reports of the phenomenon come from, among other places, Halland, Skåne, and the Stockholm area, report several media outlets.
However, it has also been seen at various locations around Europe. On Space X’s account on X, users in Slovenia, Poland, Italy, the UK, and Ireland have posted pictures of the light phenomenon.
What lies behind it is not yet known, but one explanation could be the launch of a new Space X rocket.
A similar phenomenon with a blue spiral was seen over Alaska two years ago. The spiral was then said to have been caused by excess fuel from a Space X rocket that was launched.
As the above post indicates, the strange blue whirlpool, which to many social media users resembled a spiral galaxy, is an example of what some people call a “SpaceX spiral.” These structures develop after the upper stage of a Falcon 9 rocket has separated from its first-stage booster.
As the upper stage continues towards space, the lower stage falls back to Earth. As this happens, the booster stage begins to spiral, simultaneously dumping what remains of its fuel. Due to the altitude at which this fuel is ditched, it freezes instantly, preserving a swirling pattern created by the booster’s motion.
When light reflects from this structure, it creates these strange-looking manifestations in the sky.
