Konwersatorium im. Leopolda Infelda

The hunt for the identity of the particle responsible for five times more mass in the Universe than ordinary matter is getting increasinglyintensified. New hints - or false leads? - have recently appeared in the energy distribution of electrons, positrons, and gamma-rays. Dark matter annihilating in our galactic halo of dark matter is one of several possibilities.

In this talk, we will briefly review the history of the dark matter problem, and explain why the scientific community is more and moreconvinced that dark matter exists. Methods of detection will be summarized, and recent claims of detected signals discussed.