I don’t see any thrilling seminars, public lectures or readings today or through the weekend. Perhaps it’s time to check out the Pacific Science Center and its live science shows (today: 11am, 12:30pm, and 3:30pm, Sat/Sun: 11am, 1:30pm and 4pm), its planetarium, its IMAX theater and its exhibition halls.
Pacific Science Center is at 200 2nd Ave N, Seattle (map). It is open 10am-5pm Mon-Fri and 10am-6pm Sat-Sun. Admission up to $16 (adult), IMAX and planetarium extra.