The keynote "Why Open Science Promotes Diverse, Just, and Sustainable Research" was given on-site during the “8th Max Planck Symposium for Alumni and Early Career Researchers” at the Harnack-Haus in Berlin, Germany, on July 24, 2023.During the presentation, I gave the students an overview of the importance of Open Science (OS) and how they can incorporate OS practices into their everyday scientific life.References to all used figures and videos are given.Please feel free to reach out to me if you have any questions.Link to the symposium: https://www.mpg.de/symposium2023