Richard F. Caris Mirror Lab Tour — Tucson, Arizona

Discover the Richard F. Caris Mirror Lab Tour in Arizona

Go behind the scenes of world-class scientific engineering at the Richard F. Caris Mirror Lab Tour in Tucson, Arizona. Hidden beneath the University of Arizona’s football stadium, this guided tour offers a rare look at how some of the world’s largest and most advanced telescope mirrors are created. Visitors learn how molten glass is transformed into massive, precisely engineered mirrors that help astronomers explore the universe.

Why it’s special:
This is one of the very few places on Earth where visitors can witness the real production environment for giant astronomical mirrors. The tour blends cutting-edge science, precision manufacturing, and space exploration into a fascinating and highly educational experience.

History/Story of Richard F. Caris Mirror Lab

The Richard F. Caris Mirror Lab is part of the University of Arizona’s Steward Observatory and has been a global leader in optical engineering for decades. The lab pioneered spin-casting technology, allowing engineers to create lightweight honeycomb mirrors far larger than traditional solid glass mirrors. These mirrors are used in major observatories around the world and play a critical role in modern astronomy and space research.

What You’ll See & Do on the Richard F. Caris Mirror Lab Tour

• Attend an introductory presentation on telescope optics and mirror fabrication

• Walk through the Mirror Lab facility beneath the football stadium

• See the giant rotating furnace used to melt glass for mirrors

• Observe grinding and polishing equipment used to achieve extreme precision

• Learn how mirrors are tested for optical accuracy

• Ask questions and interact with knowledgeable guides throughout the tour

Hands-On Elements: Close-up observation of mirror fabrication equipment and live explanations from experts.
Photo/Video Policy: Photography allowed in most areas; restricted zones will be clearly indicated by guides.
Souvenirs & Extras: Astronomy and University of Arizona items available at nearby campus shops.

Pricing of Richard F. Caris Mirror Lab Tour

• Adults: $25

• Students with valid ID: $20

Practical Info for Visiting Richard F. Caris Mirror Lab

Duration: Approximately 90 minutes
Format: Guided walking tour with presentations and lab observation
Schedule & Seasonality: Tours offered on weekdays; advance booking required
Working Hours: Monday–Friday, scheduled tour times during daytime hours
Audience: Science enthusiasts, students, educators, and visitors ages 10+
Accessibility: Includes walking and stairs; closed-toe flat shoes required
Safety & Restrictions: No large bags or backpacks allowed inside the lab
Languages: English
Group & School Visits: Group tours available with advance reservation
What to Bring/Wear: Closed-toe shoes, comfortable clothing, valid ticket
Facilities: Restrooms available at the tour starting location
Closures & Downtime: Limited availability on weekends and holidays

Nearby

• Flandrau Science Center & Planetarium

• University of Arizona campus landmarks

• Arizona Stadium and surrounding academic buildings

FAQs About Visiting the Richard F. Caris Mirror Lab Tour

Is there a minimum age requirement for the tour?
Yes, guests must be at least 10 years old due to walking and stairs.

How long does the Mirror Lab Tour last?
The full guided experience lasts approximately 90 minutes.

Are reservations required?
Yes, advance reservations are required as tour capacity is limited.

Is the tour physically demanding?
Moderate walking and stair climbing are required; comfortable footwear is essential.

Can I take photos inside the lab?
Photography is allowed in most areas, but guides will point out restricted zones.