Home Van Allen Observatory Van Allen Observatory Welcome to the Van Allen Observatory website. The University of Iowa Department of Physics and Astronomy maintains these pages as a guide to the Van Allen Observatory (VAO) located on the roof of Van Allen Hall in downtown Iowa City. Events Biology Career Seminar: The Long Road and Why It's Worth It: Becoming a Physician-Scientist Monday, November 16, 2026 5:00pm Virtual Biology Career Seminar: The Long Road and Why It's Worth It: Becoming a Physician-Scientist Graduate & Professional Students: Let's Do Lunch! Tuesday, November 17, 2026 11:30am to 1:30pm Sciences Library Bring your academic interests to the table and engage with fellow graduate and professional students in a casual, supportive environment. Physics and Astronomy Thesis Defense Seminar - Yuanzheng Wen Thursday, November 19, 2026 9:00am Van Allen Hall