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The Pacific Planetarium Association (PPA) is a non-profit organization with members mostly from planetariums in the western states of Alaska, California, Hawaii, Idaho, Nevada, Oregon, Washington.
Our mission is to facilitate communication and cooperation among members of the planetarium community to help them provide the very best services to their respective communities in science literacy, arts & humanities awareness, and understanding of our universe.
2026 Planetarians' Zoom Seminars (PZSs) are usually on the last Friday of the month. They are recorded and archived on the Seminar Archive page. For connection URL, see the Seminar Connection page. See Seminar Schedule page for full descriptions.
2026 Aug 28 at 11am PDT (2pm EDT, 18:00 UTC), Light Pollution: Using the Planetarium to Motivate Audiences towards Action. How can we move audiences from learning about light pollution to taking action to address it? In this workshop, Julia Plummer will engage participants with research‑based insights from planetarium storytelling and discuss how narrative design can support audience understanding, concern, and motivation. Together, we will brainstorm concrete strategies for designing experiences that encourage audiences to take action in their homes and communities. Julia Plummer is a Professor of Science Education at Pennsylvania State University. As a researcher, Julia builds on her earlier career as a planetarium educator to investigate learning in the planetarium, spatial thinking, narrative-based learning, and embodied cognition.
PPA Officers as of January 3rd 2026: Secretary Tony Smith and Treasurer Andrew Kerr
Latest recording on the Planetarians' Zoom Seminar Archive page: 2026 May 29 Opening the Universe to Everyone: How to Host Sensory-Friendly Programs in Planetariums and Museums with Jay Lamm.
Now live: make a DONATION to PPA.
To become a PPA member, see the PPA Membership page.
The Pacific Planetarium Association pay tribute to the lives and legacies of dear members who have passed on, but remain with us in memory: Don Warren (1999), Charles Hagar (2013), Lonny Baker (2015), Dale Etheridge (2019), Mike Bennett (2021), and Steve Craig (2021).
PPA is an affiliate of the International Planetarium Society. Recordings of recent IPS virtual conferences are on the IPS youtube channel.
PPA is also one of the associations in the Western Alliance Conference of Planetarium Associations (WAC—Western Alliance Conference).
PPA youtube channel: youtube.com/@ppadomes