2 November 2026
Her Royal Highness Princess Maha Chakri Sirindhorn graciously presided over the opening ceremony of the 5th International Olympiad on Astronomy and Astrophysics for Juniors (IOAA-Jr 2026) on 2 November 2026 at His Majesty the King’s 7th Cycle Birthday Anniversary Commemorating Building, Ubon Ratchathani University, Thailand.
Held from 1–8 November 2026 in Ubon Ratchathani, the Olympiad is jointly organized by the Promotion of Academic Olympiad and Development of Science Education Foundation (POSN Foundation), Ubon Ratchathani University through its Faculty of Science, and partner organizations. The event brings together students, team leaders, and observers representing 24 teams, providing an international platform for young people to demonstrate their abilities in astronomy and astrophysics, exchange knowledge, and build friendships across borders.
During the ceremony, Associate Professor Dr. Piniti Ratananukul, Secretary General of the POSN Foundation, delivered an address on the background of the event and paid tribute to Her Royal Highness’s dedication to science education and youth development. Associate Professor Dr. Chutinun Prasitpuriprecha, President of Ubon Ratchathani University, expressed profound gratitude for Her Royal Highness’s gracious presence. Associate Professor Boonrucksar Soonthornthum presented the participating delegations, while Professor Dr. Siriporn Jungsuttiwong, Dean of the Faculty of Science, presented representatives of supporting organizations to receive Certificates of Appreciation from Her Royal Highness.
IOAA-Jr 2026 aims to nurture scientific curiosity, critical thinking, and problem-solving among lower secondary school students. Beyond academic competition, the event encourages cultural exchange and international cooperation, inspiring young people to pursue further studies in science and contribute to the global scientific community.
Her Royal Highness’s gracious presence was a profound honor for Ubon Ratchathani University, the organizers, and all participants, and a source of inspiration for young people embarking on their journey in astronomy and astrophysics.
