Title: Astronomy on TikTok Presenter: Tijana Prodanovic (Department of Astronomy, Faculty of Mathematics, University of Belgrade, Serbia) This was a poster presented at the 5th Shaw-IAU Workshop on Astronomy for Education, organised by the IAU Office of Astronomy for Education (OAE, http//astro4edu.org). Besides being a researcher in the field of astrophysics for 20 years, I have also been a science communicator for 15 years. It s my feeling that in that time none of my efforts, and those include organizing science festivals and researchers night attended by 25k visitors, have resulted in such an impact as my TikTok educational astronomy profile (Dr Cosmic Ray) has. In this talk I will present some main benefits and potential that TikTok and similar platforms have for astronomy education in digital space. About the 5th Shaw-IAU Workshop on Astronomy for Education:This year’s Shaw-IAU Workshop on Astronomy for Education focuses on two themes: one special practical astronomy education topic and one scientific topic. The special topic is astronomy education outside the classroom, looking at how astronomy can be taught in a diverse range of environments such as science centers, planetaria and youth clubs. The scientific topic is planetary atmospheres, both in the solar system and exoplanets as well as our own Earth. The workshop was organised by the IAU Office of Astronomy for Education (http://astro4edu.org). More details can be found on: https://astro4edu.org/shaw-iau/5th-shaw-iau-workshop/schedule/ Keep up to date with future Shaw-IAU Workshops and other opportunities at the IAU Office of Astronomy for Education by joining our mailing list https://astro4edu.org/mailing-list/ Follow the IAU OAE on X and Facebook under @astro4edu