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 Plasma Physics Seminar - Assistant Professor Elizabeth Tolman; Department of Physics & Astronomy, University of Iowa Monday, October 12, 2026 2:30pm to 3:30pm Van Allen Hall Plasma Physics Seminar Nuclear & Particle Physics Seminar - Dr. Brady Martin; Department of Physics & Astronomy, University of Iowa Monday, October 12, 2026 3:30pm to 4:30pm Van Allen Hall Nuclear & Particle Physics Seminar Physics & Astronomy Colloquium - Dr. Dani Lipman; Department of Physics, University of Connecticut Tuesday, October 13, 2026 3:30pm to 4:30pm Van Allen Hall Physics & Astronomy Colloquium