Steward Observatory Mirror Lab
Witness the creation of giant telescope mirrors, the eyes of the universe, at this cutting-edge facility. A must-see for science and astronomy lovers!

Highlights
Must-see attractions
Social
From TikTok & Reddit
Best Time
Fewer crowds, more focused tours
Steward Observatory Mirror Lab
Best Time
Fewer crowds, more focused tours

Highlights
Must-see attractions
Witness the creation of giant telescope mirrors, the eyes of the universe, at this cutting-edge facility. A must-see for science and astronomy lovers!
"This is an incredible tour. We are so lucky to have such an amazing experience here in Tucson. This is not to be missed!!!"
🎯 Book Ahead! 🎟️
Tours are popular and sell out fast. Book your tickets online well in advance to secure your spot .
👟 Wear Comfy Shoes
You'll be on your feet for the duration of the tour, so comfortable footwear is a must for exploring the lab .
Highlights
Discover the most iconic attractions and experiences

Giant Telescope Mirror Casting
Mirror Lab Facility
Witness the incredible process of casting massive, precision telescope mirrors, the heart of astronomical discovery.

Behind-the-Scenes Technology
Mirror Lab Facility
Get an exclusive look at the cutting-edge technology and innovative engineering used to create these scientific marvels.

History of Astronomical Optics
Mirror Lab Facility
Learn about the lab's critical role in scientific research and discoveries, from past to present.
Plans like a pro.
Thinks like you
Planning Your Visit
Book Your Tour in Advance
Prepare for an Informative Experience
Best Times
Insider Tips
from TikTok, Instagram & Reddit
I got to tour the Large Binocular Telescope (in 2009). Should I post more pictures?
🎯 Book Ahead! 🎟️
Tours are popular and sell out fast. Book your tickets online well in advance to secure your spot.
👟 Wear Comfy Shoes
You'll be on your feet for the duration of the tour, so comfortable footwear is a must for exploring the lab.
❓ Ask Questions!
Guides are knowledgeable and happy to answer your questions about the mirror-making process and astronomy.
💡 Be Ready to Be Amazed
The scale and precision of the technology are truly mind-blowing. Prepare for an incredible experience.
Tips
from all over the internet
🎯 Book Ahead! 🎟️
Tours are popular and sell out fast. Book your tickets online well in advance to secure your spot.
👟 Wear Comfy Shoes
You'll be on your feet for the duration of the tour, so comfortable footwear is a must for exploring the lab.
❓ Ask Questions!
Guides are knowledgeable and happy to answer your questions about the mirror-making process and astronomy.
💡 Be Ready to Be Amazed
The scale and precision of the technology are truly mind-blowing. Prepare for an incredible experience.
What Travellers Say
Reviews Summary
Visitors consistently rave about the Steward Observatory Mirror Lab tours, calling them an 'amazing experience' and a 'hidden gem.' The knowledgeable and engaging guides, like Will and Adrianne, are frequently praised for making the complex science accessible and fun. The sheer scale of the technology and the history behind the mirror-making process leave a lasting impression, with many recommending it as a must-do in Tucson.
"Jack and Will gave an amazing tour of the Mirror Lab and the history of the facilities, where these unique giant telescope mirrors are made. Not only was the tour informative but it was also infused with lightheartedness and humor. Both guides were knowledgeable and open to questions. And the technology is made right here in Tuscon, Arizona. A great way to get a little behind-the-scenes of great science! Highly recommend!!"
Alan Beyersdorf
"I did this tour twice in 2 weeks. The first tour was so good that when my daughter came to Tucson for a visit, we signed up for the tour again. Adrianne, Lumi, and Will did a great job. They provide lots of information, videos, on-site tour, and they were prepared to answer our questions. I enthusiastically recommend this tour."
Lisa Nau
"I was in Tucson to visit an old AF buddy. His wife coordinated a tour at the mirror lab. Our guide was Chad and Will. The tour involved the history of the lab and its critical role in scientific research and discoveries. What a fascinating tour! I highly recommend this tour for those with casual and in-depth interest in this topic!! The transportation of these large lenses itself is amazing."
Joe Brouillard
What People Like
What People Dislike
Frequently Asked Questions
🚇 🗺️ Getting There
The Steward Observatory Mirror Lab is located on the University of Arizona campus in Tucson, Arizona. Parking is available nearby, and it's accessible by car. Many visitors use ride-sharing services or public transport to reach the campus. Check the University of Arizona's visitor parking information for the most up-to-date details.
Yes, there are parking options available near the Steward Observatory Mirror Lab. It's recommended to check the University of Arizona's parking services website for specific visitor parking locations and fees, as these can vary.
While it's possible to walk, it's a significant distance from downtown Tucson. Public transportation or a short drive/ride-share is generally more practical for reaching the University of Arizona campus where the Mirror Lab is located.
🎫 🎫 Tickets & Entry
Tour prices can vary, but they are generally considered a great value for the experience. It's best to check the official Steward Observatory Mirror Lab website for the most current ticket prices and any potential discounts.
Absolutely! Tours are extremely popular and often sell out weeks in advance. Booking your tickets online through the official Mirror Lab website is highly recommended to guarantee your spot.
Tour availability and times can vary. It's essential to visit the Steward Observatory Mirror Lab's official website to see their current tour schedule and book your preferred time slot.
Generally, tours are suitable for a wide range of ages, but it's always a good idea to check the specific tour details on the Mirror Lab's website for any age recommendations or restrictions.
While it's occasionally possible if there are cancellations, it's not advisable to rely on same-day tickets. Tours frequently sell out, so booking in advance is the safest bet to ensure you can experience this unique attraction.
🎫 🧭 Onsite Experience
You'll get a behind-the-scenes look at the process of creating massive, precision telescope mirrors. Tours include insights into the technology, history, and the critical role of the lab in astronomical research.
Tours usually last around 60-90 minutes, providing a comprehensive overview of the lab's operations and the science behind mirror manufacturing. Be prepared for a good amount of walking.
Yes, all tours are guided by knowledgeable staff who share fascinating details about the mirror-making process and the history of astronomy. Guides like Will, Adrianne, and Chad are frequently praised for their expertise and engaging presentations.
The Mirror Lab is committed to accessibility. However, due to the nature of the facility, some areas might have limitations. It's best to contact the Mirror Lab directly in advance to discuss specific accessibility needs.
Photography policies can vary. Generally, personal photography is allowed in designated areas, but it's always best to confirm with your guide on the day of your tour.
📸 📸 Photography
While specific photo spots are often dictated by the tour route, the sheer scale of the mirrors and the advanced machinery offer numerous impressive photographic opportunities. Always ask your guide for permission before taking pictures in any area.
Professional photography or videography usually requires special arrangements and prior approval from the Mirror Lab administration. Contact them directly to inquire about such requests.
A wide-angle lens can be useful for capturing the immense size of the mirrors. However, given the controlled environment, a standard versatile lens should suffice for most visitor photos. Ensure your camera settings are adjusted for indoor lighting conditions.
For Different Travelers
Tailored advice for your travel style
👨👩👧 Families with Kids
While the tour involves walking, it's generally manageable for most families. Consider the tour length to ensure it aligns with your children's attention spans. It's a fantastic opportunity to spark an interest in STEM fields and show them the real-world applications of science and engineering.
🔭 Astronomy Enthusiasts
Prepare for detailed explanations of optical physics, engineering challenges, and the historical context of mirror-making. The guides are often happy to delve deeper into technical aspects, so don't hesitate to ask specific questions. This is your chance to see where the magic happens for astronomical observation.
💡 Curious Learners & Science Buffs
This experience offers a unique perspective on scientific research and development. You'll leave with a newfound appreciation for the precision and dedication required to build these monumental scientific instruments. It’s an enriching experience that broadens your understanding of technological advancement.
Deep Dives
In-depth insights and expert knowledge
The Science of Giant Telescope Mirrors
Visitors on the tour get to see this remarkable process firsthand, often witnessing the massive molds and the sheer scale of the mirrors in various stages of production. The lab has been instrumental in developing mirrors for groundbreaking telescopes like the Large Binocular Telescope (LBT), which features two 8.4-meter mirrors side-by-side, offering unparalleled observational power. The dedication to innovation and precision makes the Mirror Lab a vital hub for astronomical advancement.
The sheer scale and complexity of these mirrors are often underestimated by visitors, who are typically amazed by the engineering feats involved. The tours highlight not only the technical aspects but also the historical significance of these mirrors in advancing our understanding of cosmology and astrophysics. It’s a true testament to human ingenuity and scientific ambition.
A Tour Experience Like No Other
Visitors often express surprise at how captivating the tour is, even for those without a strong background in science. The behind-the-scenes access to a working scientific facility, combined with the passionate storytelling of the guides, creates a unique and inspiring atmosphere. Many reviewers highlight that the tour exceeded their expectations and is a must-do when visiting Tucson.
The emphasis on the history of the lab and its contribution to scientific discoveries adds another layer of depth to the experience. It’s not just about seeing the mirrors; it’s about understanding the legacy and the future of astronomy being shaped right there in Tucson.
Social
from TikTok, Instagram & Reddit