IAO

International Astronomy Olympiad

The International Astronomy Olympiad (IAO) is an internationally recognized astronomy scientific-educating event for high school students (14-18 years old), including an intellectual competition between students.

2022IAO Paper 2022
2015IAO Paper 2015
2014IAO Paper 2014
2013IAO Paper 2013
2012IAO Paper 2012
2011IAO Paper 2011
2010IAO Theor A B 2010
2003IAO Theor B 2003
1999IAO Paper 1999