The International Experts Summit on Astronomy, Astrophysics, and Space Science (Astronomy Summit – 2027) is a premier event set to take place from April 26-28, 2027, in the vibrant city of Osaka, Japan. This summit will bring together leading scientists, researchers, academicians, and professionals from around the world to share their expertise, research findings, and innovative ideas in the fields of astronomy, astrophysics, and space science. Featuring prominent speakers who will address cutting-edge topics, from the latest discoveries in deep space exploration to advancements in telescope technology and space missions. Researchers will present their work through oral and poster sessions, covering a range of subjects such as black holes, dark matter, cosmology, stellar evolution, exoplanets, and the search for extraterrestrial life. Interactive workshops and expert panel discussions will provide opportunities for in-depth dialogue on current challenges, technological advancements, and future directions in space science. An exhibition space will showcase the latest technologies, products, and services from organizations and companies in the space science sector, alongside poster presentations highlighting innovative research.