OMSI After Dark: Spirits
Tickets: 21+
On sale omsi.edu
About
October 28, 2026 | 6 - 10 pm
An evening at the museum for guests 21+
21+ Only | A valid government-issued ID is required for entry for all attendees
The cobwebs are getting dusty. The black cats are roaming at night. The lights flicker on and off. That can only mean one thingOMSI After Dark: Spirits is back! Dust off your favorite costume and spend an evening learning about the spooky science related to Halloween.
Note: Weapons are not allowed. If masks are part of your costume, they must be removeable.
What to Expect: OMSI After Dark is a monthly event for guests 21 and over to explore the museum with a beverage in hand. On top of being able to roam the museum without minors, the added bonus of these events are the curated vendors and lectures relating to the monthly theme. The Planetarium will be hosting four shows, and the Featured Exhibit is open at an additional cost. This month’s vendors and lectures will relate to the science of Halloween but there will not be an exhibit about it. Check out the list of vendors below to see who is coming!
Visit the Theory Restaurant during happy hour! Happy Hour is from 5-6pm for ticket holders in the Theory Restaurant. Grab a beverage or a bite to eat and once the doors to the event open at 6pm, you’re free to leave Theory and explore the event! This is for folks who pre-purchased a ticket for the event. Last entry to Happy Hour is 5:45pm.
Activities Happening All Night
An evening at the museum for guests 21+
21+ Only | A valid government-issued ID is required for entry for all attendees
The cobwebs are getting dusty. The black cats are roaming at night. The lights flicker on and off. That can only mean one thingOMSI After Dark: Spirits is back! Dust off your favorite costume and spend an evening learning about the spooky science related to Halloween.
Note: Weapons are not allowed. If masks are part of your costume, they must be removeable.
What to Expect: OMSI After Dark is a monthly event for guests 21 and over to explore the museum with a beverage in hand. On top of being able to roam the museum without minors, the added bonus of these events are the curated vendors and lectures relating to the monthly theme. The Planetarium will be hosting four shows, and the Featured Exhibit is open at an additional cost. This month’s vendors and lectures will relate to the science of Halloween but there will not be an exhibit about it. Check out the list of vendors below to see who is coming!
Visit the Theory Restaurant during happy hour! Happy Hour is from 5-6pm for ticket holders in the Theory Restaurant. Grab a beverage or a bite to eat and once the doors to the event open at 6pm, you’re free to leave Theory and explore the event! This is for folks who pre-purchased a ticket for the event. Last entry to Happy Hour is 5:45pm.
Activities Happening All Night
