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Informatics Colloquium 21.5. Seeing the invisible (black holes)Informatics Colloquium 21. 5. 2019, 14:00 lecture hall D2 prof. RNDr. Jiří Zlatuška, CSc., FI MU Seeing the invisible (black holes) Abstract: Black holes used to be just an astrophysicsl curiosity representing extremal conditions following from General Ralativity. Until recently, no direct observation would seem feasible. Advanced use of computing allowed spectacular changes in this, resulting especially in the first image of black hole in the center of M87 using a technique resulting in computer-synthesized telescope stretching accross the diameter of the Earth as well as synthesizing a real image of black hole, not just a result of its simulation. In the talk a quite detailed and popular explanation will be provided how this remarkable scientific outcome has been obtained.