Evening programs are held one Saturday each month, April through October. A talk by a professional astronomer, physicist, or space scientist begins in the Mountain Theater (Map and Directions) starting at 7:30 pm and lasts about 45 minutes. These presentations are typically enhanced by beautiful images projected on a large screen. The audience is invited to ask questions at the end.
Following the presentation, audience members are invited to the Rock Spring parking lot area for a brief Night Sky Laser Tour by a member of the San Francisco Amateur Astronomers highlighting the prominent constellations, stars and planets visible in the night time sky, then to view through SFAA-provided telescopes. The observing session (or “star party”) lasts until 9:45 pm.