Be part of the Astronomy and Astrophysics Team of USA at the International Astronomy and Astrophysics Olympiad!

Please register at this link.

Registration will close on January 25th, 2019.

You can read more about the tests on our selection process page, and you can find study materials on our resource page. If you have any questions, email us at!

Joseph McCarty (Lubbock High School, TX)  shared his journey and tips to win a gold medal in Beijing last November.

“I first heard about USAAAO my freshman year right before the registration deadline when a friend of mine saw something about it on a MIT mailing list for prospective students. He was somewhat interested in astronomy but he knew I was very interested so he told me about it and we both took the first round that year. I didn’t prepare for the first round and qualified for the NAO thanks to some prior knowledge and educated guesses, but I got the Fundamental Astronomy book mentioned on the USAAAO resources page from a library as I was preparing for the NAO. Still, there wasn’t a lot of time so I didn’t feel very prepared, but much to my surprise I made the training camp. The training camp motivated me a lot to make the team the following year. After being selected, I began preparing for the Olympiad mostly by doing practice problems and thoroughly understanding any part I missed. While there were a lot of problems I didn’t have time to do, the focused work I did definitely paid off at IOAA, and the training we received from our coaches was also very helpful. IOAA was a very fun experience, particularly meeting many other students from around the world with similar interests and getting to know the other people from the USA. It was also my first time traveling outside the country, so it was quite different from anything I had previously done. For people interested in participating, I would recommend spending time on celestial coordinates. A strong background in coordinates will help not only in a lot of theory problems but also in observation. Also, learn a lot about any topic you find fascinating! For me, there were some subjects which I studied in more depth than I needed to for the competition, but doing that helped maintain my excitement and motivation for the other parts of the competition.”