Tifft Nature Preserve, 1200 Fuhrmann Blvd., will host Tree-topia!, a celebration of autumn and all things trees, from 10 a.m. to 2 p.m. Saturday. Activities include crafts, tours and more. Cost is $5. For more information or to register, call 825-6397 or visit


Barnes & Noble, 4401 Transit Road, Clarence, will hold Star Wars Reads Day from 11 a.m. to 2 p.m. Saturday. Events will include Star Wars story time at 11 a.m.; a Star War costume contest for kids at noon; a character meet and greet at 1 p.m. and an adult costume contest at 2 p.m. For more information, call 634-1011.


CEPA Gallery is looking for smartphone photos to stream throughout the Market Arcade Building during its Visions of Greater Buffalo Gala and auction. Send in a shot of your best color “vision” of Greater Buffalo (no people or pets) to Photos must be jpeg digital format, at least 1,000 pixels and no larger than 5MB. Deadline for submissions is Oct. 26 For more information, visit or call 856-2717.


The Penn Dixie Paleontological and Outdoor Education Center in Hamburg will present an astronomy night at 6 p.m. Saturday to view a variety of constellations. Cost is $3; children 2 and under free. For information, visit or call 627-4560.


The Buffalo Museum of Science, 1020 Humboldt Parkway, will open a permanent interactive science studio, “Our Marvelous Earth,” at 10 a.m. Saturday. The exhibit will include a wind chamber and much more. For more information, visit


• The Buffalo and Erie County Public Library will hold its fourth annual Comics Fest from 11 a.m. to 5 p.m. Saturday at the Central Library, Lafayette Square. The free event will include presentations by illustrators, workshops, a trivia contest and more. For information, call 858-8900 or visit
• The Buffalo Comicon will be held from 10 a.m. to 5 p.m. Sunday at the Buffalo Niagara Marriott, 1340 Millersport Highway, Amherst. The event will feature an Artist Alley, a costume contest, free comics, a Star Wars re-enactment and a visit from Graham Nolan, the creator of Bane. For information, visit


The KeyBank Sunday Family Film Series will feature “The Amazing Spider-Man” (PG-13) at 2 p.m. Sunday at the Riviera Theatre, 67 Webster St., North Tonawanda. Cost is $2. For tickets or information, call 692-2413 or visit