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International Astronomy and Astrophysics Competition 2023

International Astronomy and Astrophysics Competition 2023


April 21, 2023

Applications for the International Astronomy and Astrophysics Competition 2023 are now open. The International Astronomy and Astrophysics Competition is an international science competition that enables students from all countries to prove their skills and to unleash their creativity in the fields of astronomy and astrophysics.

IAAC gives you the unique opportunity to apply your skills to challenging problems. Participants can receive certificates, awards, cash prizes, and global recognition.


The best students receive the 1st prize, 2nd prize, and 3rd prize with a cash award of $150 USD, $100 USD, and $50 USD (both for the youth and junior category).
Furthermore, the most outstanding participants from each country receive a special national award to honour their excellence. There are also special school awards and awards for ambassadors.
All participants receive participation certificates.


  • All students (high school or university) are allowed to participate.
  • Students from all grades and all countries are invited to participate. However, there are two age categories:Junior: under 18 years on April 21, 2023
  • Youth: over 18 years on April 21, 2023


The qualification round is the first stage and consists of five astronomy problems that have been published online. The problems vary in topic and difficulty: Some of the problems test your astronomy knowledge, others require calculations. The qualification round will not only sharpen your mind but you can also learn more about astronomy and astrophysics!

All participants of the qualification round will receive participation certificates. You have to score at least 15 points (junior, under 18 years) or 20 points (youth, over 18 years) to qualify for the pre-final round. Digitally typed solutions receive a special honorary note on the certificates!


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