Bellevue families can turn their King County Library System card into a free pass to Pacific Science Center on Tuesday, Aug. 25.

Just show a KCLS library card at the ticket window and walk in. Each card admits up to two adults and their dependents under 18, according to a KCLS blog post announcing the one-day partnership.

The offer covers general admission, which includes exhibits like the Tropical Butterfly House, Brainy Bodies, Destination: Outer Space, and the Artemis Adventure with LEGO Bricks. Planetarium shows and daytime laser shows are also included. Planetarium shows require free timed tickets that sell out fast, so KCLS advises grabbing them as soon as you arrive.

Specialty experiences like IMAX films are not included and must be purchased separately.

Pacific Science Center, located at Seattle Center near the Space Needle, is open 10 a.m. to 5 p.m. The Denny Way entrance is closed; visitors should use the North Entrance near the Armory and Mural Amphitheater.

Don't have a card yet?

KCLS cards are free for King County residents outside Seattle, Yarrow Point, and Hunts Point. A digital card is available instantly at kcls.org/library-cards, or families can sign up in person at any branch before Aug. 25. KCLS staff will also be on-site at Pacific Science Center that day to help with sign-ups.

KCLS operates 50 branches across King County, including its largest location in downtown Bellevue at 1111 110th Ave. NE.

PacSci's broader accessibility efforts

The partnership follows Pacific Science Center's recent moves to lower barriers to entry. After the museum reopened in late 2025 following a seven-week closure, it made its courtyard fully public for the first time since 1993. "

We're always in line with our mission to be accessible, and I think removing the gates is a big step," marketing director Julie O'Mara told Seattle's Child in November 2025.

The Aug. 25 offer is a one-day event with no follow-up dates announced. Pacific Science Center also operates the Mercer Slough Environmental Education Center in Bellevue, a collaboration with the city that offers year-round environmental programming.