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Family Science Day: NASA Talk + Stargazing (San Mateo)

College of San Mateo

College of San Mateo hosts its annual Family Science Day with hands-on science workshops, free hourly planetarium shows, Makerspace activities, a firefighter demonstration, and a keynote by NASA staff scientist Dr. Brian Day on lunar activity. The free all-ages event concludes with a reception, rooftop stargazing, and live music at the Science Building observatory.

Original Event Description:
_College of San Mateo will welcome community members of all ages to its annual Family Science Day on Saturday, September 26, for hands-on experiments, planetarium shows, firefighter demonstrations, a NASA scientist’s keynote presentation, rooftop stargazing, and live music. The free event will take place from 11 am to 5 pm and from 7 to 11 pm across the CSM campus. Activities will be held in the Library (Building 9), Science Building (Building 36), and Theatre (Building 3). Family Science Day has been a San Mateo County tradition since 2006, when CSM physics professor Mohsen Janatpour created the event to introduce young people to science through engaging, tangible experiences. It has since grown into one of the College’s longest-running community events, bringing families onto campus to explore subjects ranging from human anatomy and Earth science to astronomy, physics, and emerging technologies. “Curiosity fuels our passion for science, and science, in turn, satisfies our curiosity. Together, they drive progress for all humanity. To create a brighter future, we must help our community, especially children, better understand science and nurture their curiosity. That’s exactly what the College of San Mateo’s Family Science Day event stands for, and it’s why I’ve devoted much of my educational journey to it,” shared Janatpour. The day runs from 11 am to 1 pm in the CSM Library and Makerspace. Visitors can see 3D printers and laser cutters in action, create stickers and buttons, paint light-up miniature planets, and explore family activity stations featuring building toys, coloring, vintage technology, and games. From 1 to 5 pm, CSM STEM faculty, students, and community partners will lead walk-in science workshops throughout the Science Building. Participants can explore electricity, magnetism, light, and motion; examine rocks, minerals, maps, and fossils; interact with anatomical models and human organs; build a virus model; learn how telescopes work; and observe the Sun safely through a solar telescope. Free planetarium shows will be offered hourly from 1 to 5 pm. CSM Fire Technology students will take over the Plaza of the Sun from 3 to 4 pm for “A Day in the Life of a Firefighter.” The demonstration will give visitors an up-close look at the skills firefighters use on emergency calls, along with fire-safety information and an opportunity to join CSM firefighter cadets in spraying water from a fire hose. The evening program begins at 7 pm in the CSM Theatre. At 7:30 pm, Dr. Brian Day will present “The Active Moon,” exploring evidence that the Moon may be more geologically active than scientists once believed. Day is a staff scientist for NASA’s Solar System Exploration Research Virtual Institute and leads the institute’s work in lunar and planetary mapping and modeling. His presentation will examine how seismic and volcanic activity could affect future efforts to establish a sustained human presence on the lunar surface. A reception will follow the presentation from 8:30 to 9 pm. Family Science Day concludes with rooftop stargazing and live music from 9:15 to 11 pm at CSM’s rooftop observatory in the Science Building. Family Science Day is sponsored by the San Mateo County Astronomical Society and CSM’s Math/Science Division. Admission is free, and no advance registration is required. For the complete schedule and activity locations, visit collegeofsanmateo.edu/familyscienceday._

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Disclaimer: Please double check event information with the event organizer as events can be canceled, details can change after they are added to our calendar, and errors do occur.


Cost: FREE*
*No advance registration is required.
Categories: *Top Pick*, Geek Event, In Person, Kids & Families, Lectures & Workshops

Saturday, September 26, 2026

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8:00 am   Nature Walk with LushNature Fall 2026 (Sunol)  $36*
*Free for anyone who can't afford to go.
8:00 am   Walk SF’s “Laziest Marathon” w/ Parks, Coffee Stops + Scenic Vistas  FREE
8:30 am   SF’s “Get Up, Get Out” Black Men’s Health Symposium (Bayview)  FREE
8:30 am   Get Up, Get Out: Black Men’s Health Symposium (Bayview YMCA)  FREE
8:45 am   Free Kids Soccer Trial Class for Ages 1-10 (SF)  FREE*
*Spots for the demo are limited, so secure your child's spot early!
9:00 am   National Public Lands Day in the Presidio at Rob Hill  FREE*
*Registration Required
9:30 am   Free de Young Museum Day for Bay Area Residents (Every Saturday)  FREE*
*Free general admission to Bay Area residents. Valid ID or proof of residency required. This offer applies only to the permanent collection galleries. Advanced timed tickets required.
9:30 am   Free “Legion of Honor” Museum Day for Bay Area Residents (Every Saturday)  FREE*
*Free general admission to Bay Area residents. Valid ID or proof of residency required. This offer applies only to the permanent collection galleries. Timed advanced tickets required
10:00 am   “Corgi Con” Bay Area 2026 at Alameda County Fairgrounds  $13*
*$13.44+ | Kids 6 & under FREE | Parking $15
10:00 am   8th Annual Bay Area Steps Against Melanoma (Little Marina Green)  FREE*
*Participants that fundraise $50+ will receive a FREE t-shirt!
10:00 am   Free Bay Area ADU & Tiny Home Expo Fall 2026 (Oakland)  FREE*
*Free Free Admission and Free Parking
10:00 am   Paramount Theatre Public Tour  $10*
*Acceptable methods of payment are debit or credit cards. Cash is not accepted.
10:00 am   Free Cemetery Walking Tour: “Oral Traditions” Readings and Tastings (Oakland)  FREE
10:00 am   Trinity Alley $5 Book Fair (SF)  FREE
10:00 am   SF World Naked Bike Ride Autumn Equinox/FolsomSF (Fall 2026)  FREE*
*A set of Wheels & A Big Smile are the ONLY VIP Ticket You need!
10:00 am   Sausalito Art & Harbor Days  FREE
10:00 am   Maker Faire Bay Area 2026 (Sept. 25-27)  $45*
*Tickets start at $45 | Get 25% Off Tickets with code BAS
10:00 am   Mr. Phil & Friends Live in Concert  FREE*
*RSVP requested
10:00 am   Alcatraz City Cruises’ 2026 Free “Community Day by the Bay” Festival (Pier 33)  FREE*
*Free Community Day at Pier 33 — no ticket or RSVP required. Does not include boat trip or visit to Alcatraz. Event is at Pier 33
10:00 am   Shoreline Lake’s Yearly Sale of Cool Stuff (Mountain View)  FREE*
*Free park access, equipment individually priced.
10:00 am   “National Public Lands Day” at SF’s Crissy Field (2026)  FREE*
*Registration Required
10:00 am   Maker Faire Bay Area 2026 (Sept. 25-27)  $45*
*Please use promo code FUNCHEAPSF for an additional savings and 30% off door prices
10:00 am   Mexican Navy 297-Foot “Tall Ship” Rare Visit to SF + Free Tours (Sept. 23-26)  FREE*
*Free tours available to public Sept. 23-26 at Pier 15-17 subject to availablity
10:00 am   21st Annual Burlingame Pet Parade (2026)  
10:30 am   Bagels and Bricks: Creative Hangout for Makers (SoMa)  FREE*
*RSVP Required
11:00 am   2026 Bay Area “Chuseok” Korean Harvest Festival (The Presidio)  FREE*
*Free, but donations are welcome
11:00 am   Drawn Together: A Drawing Club for Everyone  FREE*
*free for all!
11:00 am   5th Annual Art & Lit Fest (Serramonte Center)  FREE
11:00 am   The Mrs. Roper Castro Bar Crawl (SF)  FREE*
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11:00 am   Human vs. AI Film Premiere (SF)  $5*
*There are 4 sessions. Each session requires its own ticket. An all-access pass is available for all sessions.
11:00 am   September Arts & Culture Fest w/ Live Mural Painting (Downtown San Mateo)  FREE
11:00 am   District 11 OMI Family Summit  FREE*
*Free food and childcare.
11:00 am   Off the Grid 2026 Treasure Island w/ Free Kites + Free Ferry Rides (Fall 2026)  FREE
11:00 am   8th Annual Bay Area Korean “Chuseok” Festival (The Presidio)  FREE
11:00 am   Rodeo Music and Art Market  FREE*
*Free All Day; No RSVP needed
11:00 am   4th Annual “Circus on The Square” + Free Popcorn (SF)  FREE*
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11:00 am   $1 Art Vending Machine Pop-Up w/ 10+ Machines in SF (Sept. 26-27)  FREE
11:00 am   Free Art Vending Machine Weekend: 10+ Machines + Local Artists (SF)  FREE*
*Free admission - Only $1 per sticker or mini print
11:00 am   Oktoberfest at Headlands Brewing (East Bay to Bavaria)  FREE*
*Free All-Day
11:00 am   Potrero Hill and Dogpatch Art Showcase & Gala  FREE
11:00 am   San Bruno Mountain Celebration & 1st Ever “Meet the Mountain” Fair (Brisbane)  FREE*
*Free Entry! RSVP online to help us estimate attendance.
11:00 am   ICB/ART: Artists At Work  FREE*
*Free and open to the public
11:00 am   Hands-On Family Science Day: Stargazing & Planetarium Shows (San Mateo)  FREE*
*No advance registration is required.
11:00 am   SF’s “Upper Noe NeighborFest” Free Pizza, Lemonade, Popcorn + Gelato (2026)  FREE
11:00 am   Nichole Accettola – Scandinavian Everyday  FREE
11:00 am   Sarah McCoy with Melissa Blaustein – Whatever Happened to Lori Lovely?  FREE
11:00 am   2026 Sparknify Human vs. AI Film Premiere  FREE
11:00 am   Adrian West Band  FREE
11:00 am   Champions for Pet Health  FREE
11:00 am   Final Outdoor Free Yoga Class of 2026 in Golden Gate Park  FREE*
*Open to all. Sign-up requested
11:00 am   Free Round Trip Ferry Rides from SF to Treasure Island for “Off the Grid”  FREE*
*Free entry. RSVP is required for the limited free roundtrip ferry pass, valid for two adults and two children from 10:30 AM to 4:30 PM. The pass does not guarantee a specific ferry departure time.
12:00 pm   Celebration: ¡VIVA! Kickoff Party (SF Main Library)  FREE
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12:00 pm   Free Ocean Beach Chalk Art Festival “Chalk2Heal” (SF’s Sunset Dunes Park)  FREE*
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12:00 pm   Chalk2Heal Festival  FREE
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12:00 pm   Hayward’s Free 6-Hour Mariachi Festival + Lucha Libre (2026)  FREE
12:30 pm   Coffee & Craft Hour  FREE*
*Free Entry
1:00 pm   Burton Fest: Inspired by the Mind of Tim Burton (Easy Bay)  FREE
1:00 pm   This is Hallo-Wine: A Nightmare Before Christmas Free Family Market  FREE*
*Free Tickets With Skeleton Key Giveaway While Supplies Last
1:00 pm   Free “Viva Fall Fest”: Hispanic Heritage Market on Fourth Street (Berkeley)  FREE*
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1:00 pm   SamTrans 50th Community Celebration (Millbrae)  FREE
1:00 pm   Fariha Nasir’s “Home, Improved” Book Release Party at Pyarful  FREE
1:00 pm   Michael Moritz – Ausländer  FREE
1:30 pm   Jazz Jam & Open Mic at Hayes Valley Art Works Garden  FREE*
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2:00 pm   Yourself and Yours  FREE
2:00 pm   Free Shakespeare in the Park 2026 at SF’s Sue Bierman Park (Sept. 26-27)  FREE
2:00 pm   Gallery Talk: Silk Road Miniatures  $10
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2:00 pm   “On a Whim” Art Exhibition Opening Reception  FREE
2:00 pm   San Francisco Brazilian Film Festival  $20
2:30 pm   2026 Banned Books Week: Letters for Prisoners of Conscience (SF)  FREE
3:00 pm   Found Company: A Spontaneous Staged Reading Event  $10*
*Sliding scale tickets; promo 2-for-1 tickets; free food and beverages
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3:30 pm   High School Battle Of The Bands For Kenya Kids (San Carlos)  $60*
*Includes: charity donations for kids in Kenya, snacks and dinner
4:00 pm   Goth Yoga in North Beach  $25*
*If you wish to avoid ticket fees, you may pay in person with cash or by card.
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4:00 pm   Mapping Sense of Things Opening Reception  FREE
5:00 pm   Union Square’s Cinema Under the Stars: “The Conversation”  FREE
5:00 pm   10th Annual Beyond the A Word: Reproductive Life Stories  $75
5:00 pm   10th Annual Beyond the A Word: Reproductive Life Stories  $25
5:00 pm   Hike & Sip  $40*
*$40, 21+
6:00 pm   Film Night + Talk: Put Your Soul on Your Hand and Walk (Berkeley)  FREE
6:00 pm   San Mateo “End of Summer” Car Cruise (2026)  FREE
6:15 pm   Patrick Anderson Performs Philip Glass’s Metamorphosis I-V  $15
7:00 pm   “Golden Gate Comedy Night” SF’s Most Intimate Comedy Club  FREE*
*Free with RSVP. 21+
7:00 pm   Treasure Island Museum Annual Benefit Swing Dance  $71.21
7:00 pm   “Crazy Funny Asians” Free Comedy Showcase (SF)  FREE*
*Free tickets, but RSVP Required. Donations ($5-$10) greatly appreciated. Otherwise, $25 door tickets also available
7:00 pm   FREE: Oakland Comedy Saturday Night @ Secret Speakeasy (7p + 9p Shows)  FREE*
*Limited free tickets with code FUNCHEAP (donations appreciated). Otherwise use code FUNCHEAP5 for $5 off early bird and general admission tickets
7:00 pm   National Singles Week Speed Dating for 40s/50s  $30
7:00 pm   Free Outdoor Movie Night in Duboce Park “How to Train Your Dragon” (Fall 2026)  FREE
7:00 pm   Free Nob Hill Outdoor Movie Night “The Sound of Music” + Free Popcorn (2026)  FREE
7:30 pm   California Symphony: Sibelius, Higdon, and Bartók – American Connections  $50*
*$50-110
7:30 pm   Renegade Orchestra at Sebastiani Theater  $30
7:30 pm   Tokyo Arcade  $18*
*18-25
7:30 pm   PoisnIvy Circus: Light & Shadow  $38*
*38.00
7:30 pm   Stand-Up Comedy Show: “Acidic Laughs” at Alpha Acid Brewing Co  FREE*
*Free Show! Tips are Appreciated.
8:00 pm   $5 Off: “The Confessional” SF’s Wild “Sins & Secrets” Improv Comedy Show  $11.94*
*$5 off with secret code FUNCHEAP (normally $17.12) No added ticketing fees. No Drink Minimum
8:00 pm   “Puff Puff Laugh” SF’s Cannabis Lounge Comedy Show (Moe Greens)  FREE*
*Free with RSVP (21+ with Valid ID) - One item minimum purchase per person required, but pre-rolls start at just $7
8:00 pm   Hugg Magazine | Issue 003 Launch Party & Fashion Show  $12*
*Buy a ticket online using our Luma page. Drinks available for purchase at the bar!
8:00 pm   $5 Off Tix: San Francisco Playhouse’s “Peter Pan Goes Wrong” (Sept. 26-Nov. 28)  $55*
*Tickets start at $55; $5 off with code FUNCHEAP
8:00 pm   Spaced Out: Standup Comedy in Downtown SJ  $10*
*Student Discount, No drink minimum
8:00 pm   Comedy with Peter Liu  $30
8:00 pm   Scribe Live: Indie-Hearted Prog Rock at O’Reilly’s (SF)  $10 adv $15 at door 21+*
*https://www.eventim.us/event/The-DifficultsScribeMixed-SignalsEcho-Set/698654
8:00 pm   “Find & Shine” Find A Cappella Concert (Santa Clara)  $27*
*Additional 15% off using coupon code FUNCHEAP
8:00 pm   #WeLoveSF Gala: Portrait of a City (2026)  $204.59*
*RSVP required and ticket cost is tax deductible.
8:00 pm   Full Moon Trip Temple with Sound Healing  FREE*
*Suggested donation is $5-20, but we have free community tickets for anyone who wishes to attend.
8:00 pm   Stand-Up Comedy Night Inside a Skateshop (SF)  $12
9:00 pm   SF Neo-Futurists “The Infinite Wrench” (30 Plays in 60 Minutes, every Fri & Sat)  $18.60*
*$13 + roll of a die at the door, OR $16 online. Group discounts—bring friends!
9:00 pm   $5 Off: “Your Fucked Up Relationship” Live in SF (Every Friday & Saturday)  $16.37*
*$5 off with secret code FUNCHEAP (normally $21.49) No added ticketing fees. No Drink Minimum
9:00 pm   Free Tix: HellaSecret “Desi Comedy Night” Live in SF (7p + 9p)  FREE*
*Free with RSVP for first 100 people. $25 at door without RSVP
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