International Olympiad on Astronomy and Astrophysics IOAA 2026
IOAA Foundation
📌 About the Event
Do you dream of representing your country in one of the most intellectually demanding science competitions in the world? The 19th International Olympiad on Astronomy and Astrophysics is a global school-level competition organized by the IOAA Foundation and hosted by Vietnam’s Ministry of Education and Training in Hanoi. It brings together the top young astronomers from 80 countries to compete in theory, data analysis, and observational astronomy, with Indian students selected through a five stage national process conducted by HBCSE and IAPT.
ℹ️ Event Details
- Category: Astronomy and Astrophysics Olympiad, School Level
- Organizer: IOAA Foundation, hosted by Ministry of Education and Training, Vietnam. Indian selection by HBCSE TIFR Mumbai and IAPT
- Eligibility: High school students under 20 years of age before July 1, 2026, who have not completed Grade 12 before January 1, 2026, holding a valid Indian passport
- Open To: Global including India, via national selection pathway
- Team Size: Up to 5 students per country with 2 team leaders
- Effort Level: Very High
- Submission Type: Written theory exam, data analysis exam, and observational practical at international level. Offline national exams at NSEA and INAO stages
📅 Important Dates
- Registration Deadline: NSEA registration expected August 21 to September 14, 2026 via IAPT portal
- Event or Submission Date: IOAA 2026 international competition, September 25 to October 5, 2026
- Results Announcement: Medal results announced at closing ceremony, October 4, 2026
- Mode: Hybrid, offline national exams in India, in-person international competition in Vietnam
- Venue: Hanoi, Vietnam for international stage. HBCSE Mumbai for OCSC training camp
🏆 Prize Details and Value
- Prize Type: Gold, Silver, and Bronze medals, Honourable Mentions, Special Category Awards, Participation Certificates
- Prize Amount or Value: International medals and global academic recognition. OCSC qualifiers receive Rs. 5,000 special merit award in books and cash from HBCSE
- Certificates: Yes
📦 Resources and Support Available
- Past IOAA theory papers, data analysis problems, and official solutions available free on the official IOAA website going back to the first edition in 2007
- HBCSE Science Olympiad Brochure 2026 covering all five selection stages downloadable from the official HBCSE olympiads portal
- Recommended books include H.C. Verma Concepts of Physics, Kutner Astronomy A Physical Perspective, and Carroll and Ostlie Introduction to Modern Astrophysics