The swirls were seen across Europe with reports of sightings from the United Kingdom, France, Norway, Germany, Ukraine, Denmark ... to appear as a spiral in the sky," it said on X.

April 21 - 28 is International Dark Sky Week, a global celebration of the night sky during which like-minded organizations ...

An curved arrow pointing right. The Sky Tower at the Tivoli Friheden theme park in Denmark drops you without any rope or wire into a net below. You freefall from a height of 100 feet and reach ...