Explore New Horizons
Astronomy Websites
Organizations, institutions, and resources connected to PAC speakers and members.
NASA Ames Research Center
NASA research facility focused on space exploration and aeronautics.
Arizona Lunar & Planetary Laboratory
University of Arizona research in planetary science.
Association of Lunar & Planetary Observers
International organization for lunar and planetary observers.
Astronomical League
Largest U.S. amateur astronomy organization. PAC membership includes League membership.
Sky & Telescope
Leading astronomy magazine. PAC members may be eligible for subscription discounts.
Stellarium
Free open-source planetarium software and web app. Essential for planning observing sessions.