Iranian high school students stood first among 41 countries in the 9th International Olympiad in Astronomy and Astrophysics (IOAA) held from July 26 - August 4 in the Indonesian city of Semarang.
The team became the 2015 world champions with three gold, four silver and three bronze medals, said Hassan Saei Dehghan, deputy director of the National Organization for Development of Exceptional Talent and Young Researchers, Mehr News Agency reported.
Special awards were also conferred on the team for the highest grade in data analysis and theoretics and for best innovative student.
The IOAA, an annual international astronomy competition for high school students was first held in Thailand in 2007.
