RIYADH: A Saudi team is participating in this year’s International Olympiad on Astronomy and Astrophysics, which is being held in Mumbai, India. The competition, which runs until Aug. 21, sees the participation of hundreds of students from more than 60 countries. The olympiad is an annual international science competition for high school students under the age of 20. It was first launched in 2007 in Thailand and tests the skills of participants. Each country is represented by a team of three to five students.