On the Jaunary 5, the traditional "Three Kings Conference 2023" took place in Košice, Slovakia. Two of our students, Monika Robotková and Michal Svoboda, gave talks called "Jets in hot dense matter" and "Production of heavy quarks at the STAR experiment". The conference aims to connect Czech and Slovak scientists who get to know each other about their scientific research in the field of physics. This year there were lectures on the topics of particle physics, solid state physics or physics applications in medicine. After the lectures, the participants also had the opportunity to take part in a panel discussion on the topic "Does a physicist still have any advantage on the labor market?", where physics graduates who are currently working in the private sector discussed whether it makes sense to study physics and what the subsequent application might be.