Most of the matter in the Universe is dark. In fact, there is about five times more dark matter than ordinary matter. However, we do not know much about the nature of dark matter apart from the fact that it does not interact electromagnetically, and for its gravitational effects on astrophysical objects that we can observe with our telescopes.
If dark matter is a new type of particle, or more than one, we might be able to detect it. There are several experiments carried out all over the world that try to detect dark matter particles with different techniques. Some experiments are placed deep underground, for instance those at the Gran Sasso Laboratory in Italy, and some on-board satellites orbiting around the Earth. This represents an international effort of the scientific community to eventually unravel the properties of this mysterious form of matter.
To visualize all the dark matter experiments in the world, GRAPPA master student Veerle Tammer developed an interactive webpage as part of her master’s project. Click on this link, or the image below, and discover more about the various dark matter experiments carried out around the world.