"Spooky Science at miSci" a Halloween-themed, family-friendly event. Dress up in your Halloween costume and come to the museum to trick or treat in a safe environment. Cost: Children (3-12) $8.00 Adults (13+) $12.00; Seniors (65+) - $10.00; Children under 3 free. Planetarium Shows: an additional $6.00 per person, per show. 50% discount for members. From 11 a.m. to 4 p.m. at Museum of Innovation and Science, 15 Nott Terrace Heights, Schenectady.