Come to the Planetarium Programs in Waukesha this spring and summer 2025!

The Horwitz DeRemer Planetarium is located at the Retzer Nature Center in Waukesha.

All shows are held at the Horwitz-DeRemer Planetarium located inside the Retzer Environmental Learning Center. Private show reservations are available for community groups, private parties, corporate events, or scout groups. If seats are available you can purchase them up to the time of the show. For more information or to register a group, call 262-970-4139. 

Tickets are available at https://hdplanetarium.ticketleap.com. 

Planetarium Programs April Schedule:

April Planetarium Programs

• Wednesday 4/2 at 11:00am – Dinosaurs: A Story of Survival- $5.00/person
• Wednesday 4/9 at 11:00am -Totality: Explore the Wonder of Eclipses- $5.00/person
• Wednesday 4/16 at 11:00am – Voyage to Distant Worlds – $5.00/person
• Wednesday 4/23 at 11:00am – Dark Side of Light – $5.00/person
• Wednesday 4/30 at 11:00am – Cosmology – $5.00/person

April Saturday Shows

• 4/5, 4/12, 4/19, 4/26 at 11:00am – Mars: The Ultimate Voyage – $5.00/person
• 4/5, 4/12, 4/19, 4/26  at 1:00pm -From Earth to the Universe – $5.00/person

May Planetarium Programs

• Wednesday 5/7 at 11:00am – 100 Years of Eternity – $5.00/person
• Wednesday 5/14 at 11:00am – Treasures of the Milky Way – $5.00/person
• Wednesday 5/21 at 11:00am – Constellations: Adventures Connecting Earth to Sky – $5.00/person
• Wednesday 5/28 at 11:00am – Mysteries of Your Brain – $5.00/person

May Saturday Shows

• 5/3, 5/10, 5/17, 5/24, 5/31 at 11:00am – Secret of the Cardboard Rocket – $5.00/person
• 5/3, 5/10, 5/17, 5/24, 5/31 at 1:00pm – Stars of the Pharaohs – $5.00/person

June Planetarium Programs

• Wednesday 6/4 at 11:00am – Satelix – $5.00/person
• Wednesday 6/11 at 11:00am – Our Place in Space – $5.00/person
• Wednesday 6/18 at 11:00am – Little Draggy Adventure – $5.00/person
• Wednesday 6/18 at 1:00pm – Rising Star – $5.00/person
• Wednesday 6/25 at 11:00am – It’s About Time: Cosmic Cycles We Live By – $5.00/person
• Wednesday 6/25 at 1:00pm – Cap Com Go! The Apollo Story- $5.00/person

June Saturday Shows

• 6/7, 6/14, 6/21, 6/28 at 11:00am – Max Goes to the Moon – $5.00/person
• 6/7, 6/14, 6/21, 6/28 at 1:00pm -Red- Eye to the Stars- the flying observatory to SOFIA – $5.00/person

July Planetarium Programs

• Wednesday 7/2 at 11:00am – Dinosaurs: A Story of Survival – $5.00/person
• Wednesday 7/2 at 1:00pm – Seven Wonders – $5.00/person
• Wednesday 7/9 at 11:00am -Star Signs – $5.00/person
• Wednesday 7/9 at 1:00pm – The Hot and Energetic Universe- $5.00/person
• Wednesday 7/16 at 11:00am – One World, One Sky: Big Bird’s Adventure
• Wednesday 7/16 at 1:00pm – Out There:The Quest for Extrasolar Worlds – $5.00/person
• Wednesday 7/23 at 11:00am – Cosmic Colors: An Adventure Along the Spectrum – $5.00/person
• Wednesday 7/23 at 1:00pm – A to Z Astronomy: From 3 to 103 – $5.00/person
• Wednesday 7/30 at 11:00am – The Solar System Show  – $5.00/person
• Wednesday 7/30 at 1:00pm – Sky Wars: Battles of Discovery  – $5.00/person

July Saturday Shows

• 7/5, 7/12, 7/19, 7/26 – 11:00am – The Case of the Disappearing Planet – $5.00/person
• 7/5, 7/12, 7/19, 7/26 – 1:00pm – Mysteries of Your Brain – $5.00/person

August Planetarium Programs

• Wednesday 8/6 at 11:00am – Mayan Archaeoastronomy: Observers of the Universe- $5.00/person
• Wednesday 8/6 at 1:00pm – Cleopatra’s Universe – $5.00/person
• Wednesday 8/13 at 11:00am -Space Aliens: Looking for Life in the Universe – $5.00/person
• Wednesday 8/13 at 1:00pm – Chasing the Ghost Particle: From the SP to the Edge of the Universe – $5.00/person
• Wednesday 8/20 at 11:00am – Did an Asteroid Really Kill the Dinosaurs? – $5.00/person
• Wednesday 8/27 at 11:00am – The First Stargazers – $5.00/person

August Saturday Shows

• 8/2, 8/9, 8/16, 8/23, 8/30 at 11:00am – 3-2-1 Liftoff! Space Adventure of Elon the hamster – $5.00/person
• 8/2, 8/9, 8/16, 8/23, 8/30 at 1:00pm -The Artistic Universe – $5.00/person

About the Horwitz DeRemer Planetarium:

The Charles Horwitz Planetarium opened in May 2005.  The state-of-the-art, 90-seat, Digistar-6 planetarium is owned and operated by the School District of Waukesha. With the new, high-definition laser projection system, guests can fly through the rings of Saturn, land spacecraft on Mars and travel at light speed to stars and distant galaxies… all without leaving their seats!

In the Spring of 2018, the planetarium was renamed: Horwitz DeRemer Planetarium after David A. DeRemer, who was the director of the planetarium from 1978 to 2018.

The planetarium is not only an accurate day and night sky projection system, but the program serves as a district and community science resource center. School and community programs are designed to meet state and national astronomy standards, but these programs also present fundamental science concepts of weather, climate, chemistry, physics, and earth science.

The entrance to the planetarium, lobby area, and the theater are completely wheelchair accessible.
Expand your experience by enjoying the Retzer Nature Center facilities and grounds!

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