Every Wednesday night while OU is in session, the Physics and Astronomy department sponsors FREE public star parties on the roof of the campus observatory, which is located on the East side of Asp Avenue just South of Lindsey Avenue. Look for the building with the white dome on top. To reach the roof, climb the exterior staircase on the West side of the building. Note: Regrettably, the observatory roof is currently wheelchair inaccessible. This staircase is the only way to reach the roof. See the main observatory site for more information.