Wisconsin Science Festival: Planetarium Show & Night Hike

Watch the Planetarium Show, “The Dark Side of Light” that will show us how humans impact the night sky. Then head outside to enjoy a naturalist-led Autumn Night Hike where we will use our senses and learn about how wildlife adapts to the dark compared to us! The hike route will be on uneven, wood-chipped and grass trails.

DATE/TIME: Wednesday, October 22, 2025 • 6-7 p.m. (+optional presentation 7-8 p.m.)

LOCATION: Retzer Nature Center (S14W28167 Madison St, Waukesha, WI)

COST: $10/person (ages 4+)

REGISTRATION: Required; register online by noon the day before. Walk-ins are welcome if space allows; call ahead and arrive by 5:45 p.m. Register at: https://wiwaukeshacountyweb.myvscloud.com/webtrac/web/search.html?module=AR&type=Special%20Events
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Continue your evening at the Horwitz-DeRemer Planetarium (7-8 p.m.) for a free, fascinating presentation by Michelle Thaller (formerly of NASA) on how our very existence is connected to the stars! No registration required for presentation. Details: https://events.waukeshacounty.gov/default/Detail/2025-10-22-1800-WI-Science-Fest-Horwitz-DeRemer

You may also like the following events from Retzer Nature Center:

• Next Saturday, 13th September, 09:00 am, A Half Day of Awareness: Meditation, Movement, & More! in Waukesha
• This month, 20th September, 08:00 am, Fall Story Hike in Waukesha
• This month, 20th September, 08:00 am, Scarecrow Lane in Waukesha

Also check out other Festivals in Waukesha, Trips & Adventurous Activities in Waukesha.