Dario Hrupec is an assistant professor of physics at the Josip Juraj Strossmayer University of Osijek, where he teaches Physics, Computational Physics, Special and General Relativity, and Introduction to Astronomy and Astrophysics. His research interests include astroparticle physics, high energy gamma-ray astronomy, Cherenkov telescopes, and numerical simulations. He has authored a number of popular science articles, popular physics & astronomy books, and physics texbooks. He is also a translator, expert editor and reviewer of science books, public speaker and organizer of public lecture series Priroda uživo.