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OMSI After Dark: Geology Rocks!

May 27, 2026 | 6-10pm

For 21+ Only
The Museum
Coming Soon

A solid evening at the museum for guests 21+

21+ Only | A valid government-issued ID is required for entry for all attendees

Do you find yourself filling your pockets with cool little rocks when you visit the beach? Do you have a morbid fascination with The Big One? Do you dream of stumbling upon a rare dinosaur fossil? If you answered yes to any of these questions, we’ve got an event for you! Join us for the second OMSI After Dark in May: Geology Rocks! All about stones, pressure physics, geology, and the ground beneath your feet.

OMSI After Dark is for guests 21 and over, where you can have a drink and wander the exhibits after hours. Interact with hands-on science experiments, live performances, local educational groups, lectures, food and beverage samplers, and more. Each event has a different theme, which means a new set of people and entertainment to engage with each month!

OMSI Members receive a 15% discount

Tickets

OMSI After Dark General Admission
$27.00 per person | 15% OMSI member discount
Includes access to OMSI’s permanent exhibits, Turbine Hall, special activities, performances, planetarium shows, lectures, and vendors taking part in the event.

OMSI After Dark GA + TITANIC Admission
$34.00 per person | 15% OMSI member discount
Includes access to OMSI’s featured exhibit, TITANIC: The Artifact Exhibition, OMSI’s permanent exhibits, Turbine Hall, special activities, performances, planetarium shows, lectures, and vendors taking part in the event.

Activities Happening All Night

Exhibits

TITANIC: The Artifact Exhibition

This exhibition requires a separate ticket beyond standard OMSI After Dark GA entry. Tickets are an additional $7, with discounts for OMSI members.

Attractions

Vendors | See below for a full list of artisan food and beverage vendors, as well as themed vendors that will be tabling around the museum.

 

OMSI Photo Booth

Science Demonstrations

Mineral Identification | Use a few standard geologist tools to try to identify which type of mineral each of the displayed samples are.

Topography Recreation | Learn a little bit about topographic maps, then try your hand at recreating a land form based on a sample map.

Timed Activities

Kendall Planetarium (dome screen)

6:45 pm | Starry Nights Live – May Edition
7:30 pm | Extreme Planets
8:15 pm | Laser Robot Rock
9:00 pm | Laser Rolling Stones

 

Check back in as we unearth science lectures for the Empirical Theater!

Snack + Drink Samplers

We’ve only just broken ground, check back soon!

Themed Vendors

Lil Planets

Sweet Tica Silver

 

We’ve only just broken ground, check back soon!

Food + Beverage

Our Theory restaurant will be open from 5-10pm! Grab dinner or a drink before the event begins at 6pm. Enjoy wine, beer, cider, and non-alcoholic beverages. Our bars will close at 9:30pm, and alcohol samples given by vendors will end at 9:45pm.

Questions? Email events@omsi.edu.
Ticketing questions call 503.797.4000 x0

Frequently Asked Questions

Questions? Email events@omsi.edu or call 503.797.4000 x0.

Is this event 21 and over only?

Yes, you must be 21+ to attend. Minors are not allowed. Everyone must present a valid government issued ID.

If I’m unable to attend, can I get a refund?

Yes. If your plans change, if you are feeling sick or have been potentially exposed to COVID please stay home. To request a refund email concierge@omsi.edu or call 503.797.4000 x0. We will give refunds until 5pm the night of the event.

Is there food and beverage at this event?

Yes, our restaurant, Theory will be open. Plus, we will have bars with beer, wine, cider and non-alcoholic drinks. We also typically have a couple artisan vendors giving out free samples of alcohol or snacks.

Do I have to pay for parking?

Parking is $2 for after-hours events.

Visiting Soon?

OMSI is committed to making science-fueled fun available for all in our community. We are proud to offer admission assistance, financial aid, and accessible services throughout the museum. Explore access resources and amenities for guests visiting the museum.

Two students running chemistry experiments.

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