PAST EVENT - Astronomy Day - April 6, 2019 from 1-10pm

Moon PhotoAppreciating our Nearest Neighbor - FREE family-friendly activities, telescope observing, and planetarium shows focused on our Moon.

Join us at Sommers-Bausch Observatory and Fiske Planetarium for a full day of family-friendly activities including special talks, telescope observing sessions, light labs, scale solar system tours, stomp rockets, comet labs, and more!

Take a look at the full brochure with description of activities and our schedule. Come for an hour or stay all day. 

The CU Science DiscoveryBoulder Astronomy & Space Society, and International Dark-Sky Association and will also join us to provide more activities and information.

Astronomy Day 2019 Partner logos


There's always something amazing to see in the sky! Check back for future special astronomical upcoming events, including eclipses, planets at opposition, conjunctions, and new comets.

Schedule a field trip, tour, or special event at SBO. 

SBO Open House with crowd on observing deck

Nighttime public event on the SBO observing deck.