We thank everyone that participated and that made our first online exam a success! Problems and solutions are posted on the website. There were 2 versions of the exam, they differed in numerical values given in question 4. The difficulty of the exam was the same on both days. On different days students got different versions. Students should expect to hear their results in 2 weeks.
Top 10 students will be invited to represent USA at the International Astronomy and Astrophysics Olympiad and will start online training shortly after the selection is made. So far the International Astronomy and Astrophysics Olympiad is still planned to be held in September in Colombia. We will post any updates as we learn.
For any further questions, please email us at firstname.lastname@example.org!