World Fossil Day Extravaganza: 3:45 p.m., NoBo Corner Library, 4600 Broadway, Boulder. Celebrate World Fossil Day with this STEAM inspired event. Traverse millions of years as attendees learn about different types of fossils with hands-on activities. Check out specimens from the University of Colorado Museum of Natural History, create a bug in amber, practice excavation skills and more. calendar.boulderlibrary.org.
Diversity Book Club: 2 p.m., George Reynolds Branch, 3595 Table Mesa Drive, Boulder. Read books by diverse authors and discuss them over tea and coffee. Diversity Book Club meets the second Tuesday of the month. October’s selection is “On Earth We’re Briefly Gorgeous,” by Ocean Vuong. calendar.boulderlibrary.org.
Fall Festival of Choirs: 7:30 p.m., Boulder Chamber, 2440 Pearl St., Boulder. All four CU Boulder choirs will perform a range of musical genres by composers such as Robert Schumann, Fanny Hensel, Matthew Lyons Hazzard, Louis Lewandowski, Shulamit Ran, Yehezkal Braun, Felix Mendelssohn, Randall Thompson, Susan LaBarr, Mari Èsabel Valverde, Steven Stucky, Annika Socolofsky and Moses Hogan. The concert will close with a combined choirs performance conducted by College of Music Distinguished Alumna Charlene Archibeque — the first woman to earn a doctor of musical arts in choral conducting, doing so right here at CU Boulder in 1969. Free, 303-492-1411, cupresents.org.
Boulder Books and Brews: 4 p.m. Wednesday, Boulder Social, 1600 38th St., Boulder. Sample a curated selection of beers while enjoying lively booktalks that match each brew’s flavor, theme or origin. Whether it’s a bold stout paired with a gritty mystery or a bright IPA alongside a quirky memoir, this program blends the best of books and brews for a flavorful, literary experience. 720-716-3345, eventvesta.com.
Pumpkin painting competition: 4 p.m. Wednesday, NoBo Corner Library, 4600 Broadway, Boulder. Get spooky this fall season with a pumpkin painting bonanza. Paint a pumpkin, and put it up for display in the library. Everyone takes home their pumpkin after a week of public voting, and the owners of the prettiest pumpkin get a carving kit prize. Pumpkins and painting supplies will be provided. calendar.boulderlibrary.org.
“Roam” book signing: 6:30 p.m. Wednesday, Boulder Book Store, 1107 Pearl St., Boulder. Hillary Rosner will speak about and sign her new book “Roam.” She will be in conversation with Hannah Nordhaus. $5, boulderbookstore.net.
Teen Craft & Chat: 2 p.m. Thursday, NoBo Corner Library, 4600 Broadway, Boulder. Stop by NoBo on Thursday afternoons to get together with like-minded folks and create. Art supplies and snacks will be available for anyone who wants to drop in and make something cool. calendar.boulderlibrary.org.
Boulder Movie Club movie: 6:30 p.m. Thursday, Boulder Public Library, 1001 Arapahoe Ave., Boulder. Join the Boulder Movie Club to watch and discuss films on the big screen in the Canyon Theater. This week’s film is “Gummo.” Lonely residents of a tornado-stricken Ohio town wander the deserted landscape trying to fulfill their boring, nihilistic lives. Rated R, runtime 1 hour 29 minutes. calendar.boulderlibrary.org.
Christopher Morse concert: 7 p.m. Thursday, The Wheel House, 101 Second Ave., Suite B, Niwot. Blending elements of folk, country and mellow indie/pop, Christopher Morse’s music has evolved into a rich soundscape that listeners can really sink their teeth into. bandsintown.com.
Boulder Roots Music Fest: noon Friday, Boulder Theater, 2032 14th St., Boulder. Boulder’s Roots Music Fest promises an unforgettable weekend of music, collaboration and celebration — with a wide range of genres, from indie, funk, hip hop, cumbia, folk, blues, blue grass, electronic and everything in between. From seasoned veterans to rising stars, the lineup will represent the diverse sounds and styles that make Colorado’s music scene so unique. z2ent.com.
“Dr. Jekyll and Mr. Hyde” film screening: 1 p.m. Friday, Boulder Public Library, 1001 Arapahoe Ave., Boulder. Spend Friday afternoon in the Canyon Theater watching “Dr. Jekyll and Mr. Hyde” (1941), rated PG, runtime 1 hour 54 minutes. Closed captions displayed when available. calendar.boulderlibrary.org.
Fiske is 50: 7 p.m. Friday, Fiske Planetarium, 2414 Regent Drive , Boulder. Take an astronomical journey and travel back in time to reminisce about the mind-boggling discoveries and technological breakthroughs made since Fiske was founded. APS professors Fran Bagenal, Ben Brown and Andrew Hamilton will explore current research and aspirations for uncovering questions that still remain. 303-492-1411, calendar.colorado.edu.
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