Horwitz-DeRemer Planetarium

Our current planetarium system has served us well for many years, but technology has advanced dramatically since it was installed. Upgrading to Digistar 2025 will ensure we can ...

Our current planetarium system has served us well for many years, but technology has advanced dramatically since it was installed. Upgrading to Digistar 2025 will ensure we can ...

NEW from the Horwitz-DeRemer Planetarium...public show punch cards! You may purchased these in quantities of 5 or 10 visits. They would certainly make a great gift for any astrono...

Please view our NEW brochure that highlights our schedule for May - August. Want all of this information and more, please go to our events page. Remember the best place to ...

Please view our NEW brochure that highlights our schedule for May - August. Want all of this information and more, please go to our events page. Remember the best place to ...

Join us for the Beer Garden hosted by Friends of Retzer on Friday, July 31 from 4–8 PM at the beautiful Retzer Nature Center (S14 W28167 Madison St., Waukesha) for an evening fill...

Calling all young astronomy and art enthusiasts! Join the Horwitz-DeRemer Planetarium for the very first session of “Art Among the Stars.” Jenny Carter, a FRIEND of the Horwitz-De...

Please view our NEW brochure that highlights our schedule for January - April. It has tons of special event fun, great fan-favorite shows, and even a few NEW shows! Want all of...

Please view our NEW brochure that highlights our schedule for January - April. It has tons of special event fun, great fan-favorite shows, and even a few NEW shows! Want all of...

Join us for an unforgettable laser show! Tickets are $8, and every extra dollar you choose to give directly supports the Planetarium’s “Don’t Let the Planetarium Go Dark” campaig...

Join us for an unforgettable laser show! Tickets are $8, and every extra dollar you choose to give directly supports the Planetarium’s “Don’t Let the Planetarium Go Dark” campaig...