On the edge of Hamburg's Volkspark, about one kilometer from the Volksparkstadion, the ALPS II experiment is located in a tunnel 20 meters underground. The experiment is actually looking for the dark matter that holds our home galaxy together and new particles that can carry light through a wall, so to speak. However, if there is a lot going on in the Volkspark stadium, the experiment can "listen in", regardless of whether around 50,000 soccer fans are jumping and celebrating a European Championship goal or the Swifties are dancing to "Love Story".

It is the minimal vibrations in the ground that make the difference in the ALPS II experiment - in the truest sense of the word. You can find out how the whole thing works, how incredibly sensitive an experiment has to be to be able to make such measurements and how exactly this is used in the search for dark matter at the DESY Science Café.

And of course we also clarify the following questions on this evening: Who was louder, the EM soccer fans or the Swifties? To which song did the Swifties go the loudest? And: Can we also measure the falling tears of the HSV fans with ALPS II?