Arnold Hanslmeier is a professor of astrophysics and was the director of the Institute of Physics at the University of Graz. Research stays and his positions as a guest professor have taken him to locations such as Toulouse, Freiburg, Innsbruck, Tenerife, Vienna, Zagreb, and Slovakia. His repertoire is diverse: lectures for interested laypeople, experienced author of educational, popular science, and specialized books, as well as photographs taken at his private observatory, among other things. In 2023, the asteroid 182674 was named in his honor.