Content starts here

CLOSE ×

AARP Membership — $15 for your first year when you sign up for Automatic Renewal

Get instant access to members-only products and hundreds of discounts, a free second membership, and a subscription to AARP the Magazine.

Join Now

Renew Now

Back to Things to Do

Charles Z. Horwitz Planetarium

Name: Charles Z. Horwitz Planetarium
Address: Retzer Nature Center, Madison Street, Waukesha, WI, 53186, US

Retzer Nature Center, Madison Street

Waukesha, WI 53186

Visit Website

By clicking the links above, you'll leave AARP and go to a website that is not operated by AARP. A different privacy policy and terms of service will apply.

The new Charles Horwitz Planetarium opened in May 2005. The sky theater is equipped with a large variety of specialized visual effects projectors which can create auroras, meteors, eclipses, lighting, rockets, hurtling through space or a journey to the surface of another world.

Please use "Flag This Place" to alert us about content that is inappropriate or needs immediate attention. Nothing you submit will be shared with other site visitors.

AARP Events for Pearl City

Featured Event

Mind & Body With Coach Carl - Social Connections

Tuesday, Feb 10, 2026 at 10:00 a.m. HST

Zoom

Online Event
Featured Event

AARP at the Generations Magazine Senior Fair

Friday, Feb 20, 2026 at 10:00 a.m. HST

Windward Mall

Kaneohe, HI
Featured Event

Detect and Avoid Fraud in the AI & Crypto Era

Monday, Feb 23, 2026 at 9:30 a.m. HST

Japanese Cultural Center of Hawaiʻi

Honolulu, HI