Museum open today 9:30 a.m. - 4:30 p.m.

Plan Your Visit

Explore artifacts and natural history, learn with hands-on activities, delve into active research and astronomy, or enjoy a show in Idaho's largest planetarium.

Admission

Admission to the museum galleries, distinguished speaker forums, and art exhibits is always free! Many events at the Observatory are free. There is a small per-seat fee for the planetarium shows. 

Driving Directions

The Herrett Center is centrally located in the Magic Valley in Twin Falls, ID on the north side of the CSI campus.

Google Maps Driving Directions

Campus Map (PDF)

Herrett Center for Arts and Science
The College of Southern Idaho
315 Falls Avenue
Twin Falls, ID 83301

Happening Today

See what's happening today at the Herrett Center! There's always a variety of activities for families, researchers, students, and citizen scientists.

Find Today's Events

Museum Hours

Tuesdays 9:30 a.m. - 9:00 p.m.
Wednesdays 9:30 a.m. - 4:30 p.m.
Thursdays 9:30 a.m. - 4:30 p.m.
Fridays 9:30 a.m. - 9:00 p.m.
Saturdays 1:00 p.m. - 9:00 p.m.
Closed Sundays, Mondays, and Federal holidays. Admission to the museum is always free.

Upcoming Events
Reflections on the History of the College of Southern Idaho

Join us for an illuminating evening at the Herrett Center as we explore six decades of growth, innovation, and community impact at the College of Southern Idaho.

What to Expect
Travel through time from CSI’s founding in 1965 to its current stature as a regional leader in education, innovation, and workforce development. This lecture will spotlight the founders, students, educators, and community visionaries who shaped the college’s enduring legacy.

Presented By:

Dr. Jim Gentry and Professor Justin L. Vipperamn

Event Details:

  • Date: Tuesday, September 9, 2025

  • Doors Open: 6:00 PM

  • Presentation Begins: 6:30 PM

  • Location: Rick Allen Room, Herrett Center for Arts & Science, Twin Falls, ID

  • Cost: Free and open to all

Full Herrett Forum Lineup
Monthly Free Star Party

Discover the wonders of the night sky at our Monthly Free Star Party on September 13th from 8:45 PM to 10:45 PM! Join us after dark for a special stargazing experience where guests can peer through our powerful telescopes and explore a variety of celestial sights.

Guests can expect to see double/mulitple stars, deep-sky targets (star clusters, nebulae, galaxies) after end of twilight (9:28 PM) on a moonless night, Neptune (after 9:36 PM), and Saturn (after 9:38 PM)

Observatory events are weather permitting. All ages welcome.

Check out other Observatory events!
Volunteers talking with guests about snakes, with snakes in tanks between them
Reptile Revue

1st & 3rd Tuesdays | 6 PM – 7 PM | FREE

Get up close and personal with some of the coolest cold-blooded residents of the Herrett Center! Reptile Revue happens twice a month and gives you the chance to meet our fascinating reptiles, learn fun facts, and even interact with them in a safe and educational setting.

Upcoming Reptile Revue Events:

September 16th 

October 7th and 21st

Art Reception: Michael Rainey

Join us for an evening celebrating the work of artist Michael Rainey. Known for his evocative imagery and thoughtful compositions, Rainey’s art invites viewers to pause, reflect, and connect with the world in new ways.

The reception will feature light refreshments

Date & Time: September 16 from 7:00 PM to 9:00 PM

Image of a cartoon saturn over a dark blue evening space sky
Closest Approach of Saturn in 2025

Closest Approach of Saturn 2025
Sunday, September 21 | 1:15–1:45 AM | Centennial Observatory | Free Admission

Experience Saturn at its best! Join us in the Centennial Observatory for a rare late-night opportunity to see the ringed planet during its closest approach of 2025.

From 1:15–1:45 AM, Saturn will be just 795 million miles (1.28 billion km) from Earth, appearing bright and stunning in our telescopes. This year, the planet’s iconic rings will be tilted at only 4 degrees from edge-on, offering a unique perspective not often seen.

Don’t miss this chance to witness Saturn in striking detail—from its shimmering rings to its moons—during a peak celestial moment.

Please note: Observatory events are weather permitting. In the case of clouds or poor conditions, telescope viewing may be limited or unavailable.

Check out other Observatory events!
Green Leaves over a white background
Fossilization of Leaves

📅 Friday, September 26 | 🕔 5:00 – 8:00 PM
💵 Admission: $10 per person


Step back in time and discover the fascinating process of fossilization! During this hands-on evening activity, participants will create their own fossilized leaves to take home while learning about the science behind how fossils form. Guests will also have the chance to explore the museum’s fossil collections up close and uncover the stories hidden in ancient specimens.

Get Tickets

Field Trips and Group Tours

Field trips and educational group events are welcome! Choose from our tour options or request a custom theme when you book a field trip.

 

Accessibility

The Herrett Center for Arts & Science is committed to making our collections, building, programing, and services accessible to all audiences.

Open Caption is available for most Faulkner Planetarium Shows. To request this service, please let the cashier at the front desk know when purchasing tickets.

The Centennial Observatory features one of the world’s largest fully wheelchair-accessible public telescopes. An elevator takes visitors up to the observatory space, once there, a wheelchair elevator is available to take visitors with limited mobility to the observatory deck. The ARE-125, an optical “periscope” designed by DFM, allows unprecedented access to the telescope for wheelchair-bound or limited-mobility visitors.

For questions concerning accessibility prior to your visit, please call the Herrett Center front desk at 208-732-6655.

Inside Map of the Herrett Center

floorplan map