According to Hanoi City Department of Educationa nd Training, Vietnamese students won one silver, five bronze medals and one consolation prize at the 15th International Olympiad on Astronomy and Astrophysics (IOAA).
Vietnamese students won one silver, five bronze medals and one consolation prize at the 15th International Olympiad on Astronomy and Astrophysics (IOAA), said the Hanoi Department of Education and Training on August 22.