How to bring light to dark universe

From astrophysical observations over the last 100 years we have learned that the stars, planets and all the matter which surrounds us only make up 5% of the total energy density in the universe. The unknown 95% consist of the invisible dark matter and the even more mysterious dark energy. I will discuss how we try to find dark matter using a big detector 1400 m under a mountain in Italy with the most sensitive light detectors in the world, which we test here in Stockholm.
Public lecture by Jörn Mahlstedt, researcher at the Department of Physics, Stockholm University