International Olympiad on Astronomy and Astrophysics (IOAA)

Name: International Olympiad on Astronomy and Astrophysics (IOAA)
Start: 2026-09-25
End: 2026-10-05

STEM

Results announced

October 5, 2026

An annual astronomy and astrophysics competition for high school students, with theoretical, data analysis and observational rounds. National teams are selected through each country's own astronomy olympiad.

Registration

Format: In person
Age: 14-19
Participation: Team
Location: International
Entry fee: Free
Prize: Gold, silver and bronze medals plus honourable mentions.

Timeline

IOAA 2026 (Hanoi, Vietnam)September 25, 2026 (UTC+7) source
Results announcedOctober 5, 2026 (UTC+7) source

Country pathways

Real national qualifier pathways into this competition, where one exists.

India official site

Indian National Astronomy Olympiad (INAO)approximateJanuary 31, 2027 source

Visit the official site