The astronomy and astrophysics event for high school students was held in Volos, Greece from Sept 24-30, reports the Bangkok Post.
In the competition, Apiwit Channarong and Chayapol Nontasut, students from Suankularb Wittayalai School in Bangkok, came home with gold medals and received Absolute Winner awards for earning the highest scores.
Nanthorn Kitpadung from Deebuk Phangnga Wittayayon School in Phangnga also received one gold medal.
Two other students, Nattanan Jenyongsak from Saengthong Vitthaya School in Songkhla and Piti Thamkowit from Patumwan Demonstration School in Bangkok also came home with silver medals.