Caligo memnon (Owl Butterfly), a member of the Nymphalidae family.

December Member Guest Weekend

Members, be curious and share your love of PacSci without using any of your limited single-use guest passes. Science is even more fun with friends! Invite up to six guests per day to visit Pacific Science Center with you during this weekend and they’ll get in for free.

Make sure to join in the festivities at Ugly Sweater Weekend December 20-22!

Cost: Free for members and up to six guests – no advance tickets required!

Recommended Ages: All ages

Become a Member

Members receive program and event discounts and free admission.

The event is finished.


December 21, 2019


All Day


Pacific Science Center
200 Second Avenue North, Seattle, WA 98109