San Francisco Microscopical Society

03/22/2026

Join us next week in San Francisco! This nature series reveals Earth’s ecosystems through radical shifts in scale—from microscopic wildlife to the planet’s most iconic species, and even the potential for life beyond Earth.

is the proud fiscal sponsor of this series by and we hope to see you at this special sneak peek premiere that features bison, tardigrades, and fireflies!

Free tickets available at arielwaldman.com/2026

01/25/2026

Have you ever made a Winogradsky column? We will be building our own and watching them grow and change over time.

12/21/2025

10/25/2025

The was at the today! Come explore the microcosmos with us.

05/13/2025

Bubbles under the microscope

04/15/2025

Last week we took this flowers and pollen are beautiful on the microscope

03/23/2025

11/22/2024

Join us this Saturday at for Thanksgiving Under the Microscope! Come explore locally gathered native ingredients selected by the ‘ottoy initiative. 11am-3pm, more info at the link in our bio!

10/22/2024

SF Micro Society won Editors’ Choice at Bay Area! We had a fantastic and fun time connecting with people at our booth and illuminating the wonders of the microcosmos.

We hope you’ll join us at one of our future meetups. Become a member today to get access to our online community of micro-enthusiasts and calendar of events. Only $12/year to join (or free if you’re a student). Link in bio!

05/23/2024

We love the critters, but exploring our food is pretty fun also! Can you guess what kind of seeds these are?