Flandrau is going cashless on June 3, 2025 - On this date, we will no longer be able to accept cash as a form of payment for admission, tickets or gift shop items.

Enter Stellar
Surround yourself in journeys that broaden your horizons. The Eos Foundation Planetarium Theatre in Tucson features 146 custom-designed premium seats, a SCISS Colorspace projection system with 4K resolution fulldome projection, dynamic planetarium software, an Induction Loop assistive listening system, and 18,000 watts of Dolby 5.1 sound.
Come enjoy an immersive planetarium experience like no other!
You can see all the shows we have in our catalog. The Eos Foundation Planetarium Theater is also home to our Laser Light Music Shows.
Buy tickets online or in person. Popular shows may sell out!
Planetarium Tickets
Regular rates
- Adults: $14.95
- Children (ages 3-15): $10.95
- Children ages 2 and under: Free
Discounted rates
- Seniors (65+) and Military: $12.95
- College ID Holders: $10.95
- Flandrau Members: $5.95
- EBT/WIC Cardholders : $3*
Science Center Exhibit admission is sold separately or as an inclusion with the combo ticket. Shows start promptly at showtime. Late arrivals may be denied. There is a $0.95 processing fee per ticket for online ticket sales. Processing fees are non-refundable. Tickets are non-refundable. See additional guidelines in "Ticket Info" drop down.
- Please plan to arrive at least 10 minutes prior to the start of your show, and allow extra time for parking.
- Discount rates, member rates, and passes do not apply to special events and sold out events.
- Show schedules are typically posted about one month in advance.
- For groups of ten or more, schedule a Group Visit to take advantage of a reduced rate (must schedule in advance for group rate).
- If you're planning to bring a large group to Flandrau in the near future and you haven't scheduled a group visit, please call us at 520-621-4516 to give notice.
*Museums for All program: Please present EBT or WIC card upon arrival. Must be purchased in-person. Limit 4 people per cardholder.
Showtimes

The Eos Foundation Planetarium Theater will be closed during this time for regular upgrades to enhance your experience. In the meantime, our science exhibits will remain open for exploration on these dates.
International Day of Light

12:30PM - THE SUN OUR LIVING STAR
Discover the secrets of our star and experience never-before-seen images of the Sun’s violent surface. This visually striking planetarium show is about the most important star in our lives.
Audience: Younger audiences
Style: Fulldome film followed by a live sun talk
BUY SHOW + SCIENCE EXHIBIT COMBO
Laser Light Music Night

12:30PM - THE SUN OUR LIVING STAR
Discover the secrets of our star and experience never-before-seen images of the Sun’s violent surface. This visually striking planetarium show is about the most important star in our lives.
Audience: Younger audiences
Style: Fulldome film followed by a live sun talk
BUY SHOW + SCIENCE EXHIBIT COMBO

12:30PM - THE SUN OUR LIVING STAR
Discover the secrets of our star and experience never-before-seen images of the Sun’s violent surface. This visually striking planetarium show is about the most important star in our lives.
Audience: Younger audiences
Style: Fulldome film followed by a live sun talk
BUY SHOW + SCIENCE EXHIBIT COMBO

12:30PM - THE SUN OUR LIVING STAR
Discover the secrets of our star and experience never-before-seen images of the Sun’s violent surface. This visually striking planetarium show is about the most important star in our lives.
Audience: Younger audiences
Style: Fulldome film followed by a live sun talk
BUY SHOW + SCIENCE EXHIBIT COMBO