This version of the calendar includes planetarium public events offered by both the Friends of the Planetarium (FOAP) and Arlington Public Schools (APS). Tickets for APS events must be purchased at the door. Tickets for most  (FOAP) public events may be purchased online or at the door. Tickets for FOAP programs are usually available online one to two weeks before the event, at: https://friendsoftheplanetarium.ticketleap.com