The Physics of Dark Matter
- Colloquium

The Physics of Dark Matter
A wealth of astrophysical and cosmological observations points towards the existence of a new form of matter, called Dark Matter, which gravitates but has little or no interaction with electromagnetic radiation. Observational and theoretical constraints exclude all known particles as constituents of this mysterious Dark Matter, but still allow very large ranges of mass and interaction strength of these particles. In this talk I will review the evidence for Dark Matter and mention a couple possible candidate particles and the resulting phenomenology.



![3D visualisation of human neuronal tissue reconstructed by multi-scale X-ray phase contrast tomography. Neuronal cell nuclei are shown in yellow for the granule neurons in the dentate gyrus region of the hippocampus. Blood vessels are shown in red. By changing the X-ray optical magnification in the multi-scale recordings, one can zoom into regions-of-interest (red ovals). In these scans the resolution is high enough to resolve sub-structures of the nucleus, associated with different DNA packing regimes. Adapted from [6]](/storages/physik/_processed_/e/4/csm_Kolloquium_Salditt_0e30a3f090.png)




