Some mysterious clouds looking like fingers appeared in the sky of Denmark on December 1, 2015.
And looking at these impressive but weird pictures, you understand why residents from Kolding were mind-blown.
For the first time, the Internet is able to listen to the Large Hadron Collider (largest single machine in the world). CERN’s massive particle accelerator makes distinctive noises during operation. A worker recorded this audio from an emergency bunker right next to the beam.