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OMSI After Dark: PROMSI

May 15, 2026 | 6-10pm

For 21+ Only
The Museum

Date night at the museum for guests 21+

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

OMSI After Dark: PROMSI is the museum’s annual take on prom, done the After Dark way with vendors, lectures, and science demos. Usually held in February, this year we’ve decided to bring you the ice and cold in spirit only, with an Edwardian arctic cruise theme held in May! So call up your haberdasher and ask for the biggest feather they have as it’s time to dance the night away!

Unfamiliar with the event? 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
$50.00 per person | 15% OMSI member discount
Includes access to OMSI’s permanent exhibits, special activities, performances, planetarium shows, lectures, and vendors taking part in the event. Enjoy two 5oz pours of sparkling wine from select bars. Alcoholic option includes Blanc de Blancs from Chemistry and a non-alcoholic option includes Brut Zero NA from Varnum Vintners.

OMSI After Dark GA + TITANIC Admission
$57.00 per person | 15% OMSI member discount
Includes access to OMSI’s featured exhibit, TITANIC: The Artifact Exhibition, OMSI’s permanent exhibits, special activities, performances, planetarium shows, lectures, and vendors taking part in the event. Enjoy two 5oz pours of sparkling wine from select bars. Alcoholic option includes Blanc de Blancs from Chemistry and a non-alcoholic option includes Brut Zero NA from Varnum Vintners.

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.

 

Turbine Hall

A dynamic, hands-on exhibit space where visitors explore real-world science through interactive challenges like building, testing, and designing solutions to environmental and engineering problems.

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.

 

Ice Sculpture by Iceovation. Folks who attended virtual OMSI After Dark in 2020 will be pleased to hear of this sculptor’s return!

 

String Quartet by musicians Cecille Elliott, Chibia Ulinwa, Alexis Mahler, and Amelia Hunnicutt.

 

Dance Party ft. DJ Bazooka

 

Photo Lounge with photography by Heliorana

Science Demonstrations

Iceberg Plunge | Test your hand (literally) at cold water tolerance to find out how long you could last in frigid ocean temperatures.

Life Vest Evolution | Come check out a few different examples of life vests over the ages, and see how this safety technology has developed.

Timed Activities

EMPERICAL THEATER LECTURES
6:45 pm | Tragedy and Triumph: Oregon’s Surprising Connection to the Titanic, with John Lamoreau, Titanic Researcher & Artefact Collector
8:15 pm | Class, Gender, Privilege and Luck. How 3 Dogs Survived the Sinking of the Titanic and 1500 Humans Did Not, with John Lamoreau.

 

KENDALL PLANETARIUM
30 min shows | first-come, first-served; no food or drink allowed. It’s recommended you get in line 15 minutes prior to the show.

6:45 pm | Starry Nights Live! – 1912 Edition
A live walk-through of the night sky as it could be observed from the Titanic in 1912, hosted by an OMSI Space Science Educator.

7:30 pm | Black Holes: The Other Side of Infinity
A short film for dome screens

8:15 pm | Laser PROMSI
A custom laser light show just for this evening!

9:00 pm | Laser Taylor Swift

Themed Vendors

Cositas PDX | Hand-made Jewelry

Danielle Schlunegger-Warner | Icebergs!

Devo Portraits | Watercolor portraits

Grand Gesture Books | Romance Novels

Kei by Design | Calligraphy Demonstrations + Line Art

Lily Henry Jewelry | Antique Edwardian pieces

Mariquita Medicinals | Wearable Dried Bouquets

Meeting Mutuals | Mingle on the dance floor!

Cont’d

Mister OK’s Essentials | Self Care Goods
Pacific Northwest Wilderness Medicine | Hypothermia Education

Planned Parenthood | Healthcare

Plan An Event | OMSI

Queer Cute | Queer Dating + Events

OSU Environmental Molecular Toxicology | Current and Historical Toxins

Oregon Tuberculosis Research Lab

The Traveling Typist | Live Typewritten Poetry

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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