About us
The Philadelphia Science Fiction Society is a non-profit 501(c)3 organization whose purpose is to promote, discuss, celebrate and educate people about science fiction, fantasy and speculative fiction in all of their forms.
PSFS meets monthly, usually on the second Friday of the month. Since Covid, our meetings have been a combination of remote (via Zoom) and in-person. Locations for in-person meetings are either at St. Mary’s Church at Penn, 3916 Locust Walk, Philadelphia PA 19104, or the Rotunda, 4014 Walnut Street, Philadelphia PA 19104.
Meetings usually feature a guest speaker from some area of the SF or fantasy field. Past guests have included Carmen Maria Machado, Josiah Bancroft, Tom Purdom, Jon McGoran, Madeleine Miller, Fonda Lee, Jeanne Cavelos, Jonathan Lethem, Vandana Singh, PJ Manney, Jason Sanford, John Wiswell, A. T. Greenblatt, Cat Rambo, Jo Walton, Stephanie Feldman, Ray Nayler, Premee Mohamed, Randee Dawn, Ellen Datlow, Walter Hunt, and Gregory Frost. Although our primary focus is on literary forms of SF and Fantasy, we also present guests who are involved in science, art, movies, comics, and gaming.
PSFS was founded by a group of teenage SF fans in 1935 and is the oldest continually active science fiction club in the United States. In addition to our regular monthly meetings, we have a book discussion group, a writer's workshop, (several of our members are successful published authors) and many special events such as parties, picnics, and trips to movies and museums. If you enjoy the wide and varied worlds of science Fiction and fantasy, you will find a home at PSFS!
For more information about the Philadelphia Science Fiction Society, see our website at www.PSFS.org.
Philcon, our annual three day science fiction convention, takes place every November. It features speakers, panel discussions, performances, exhibits, an art show, costume show and much more. For more information about Philcon, go to www.philcon.org.
We hope to see you at our next meeting!
Upcoming events
3

PSFS April 2026 Author Presentation (online/Zoom) - guest Marie Vibbert
·OnlineOnlineThis event will be virtual only and held via Zoom; please email the address "info@psfs.org" to receive the link.
Buckle up for the April PSFS meeting, featuring the fantastic SFF author Marie Vibbert as guest speaker! Friday April 10 at 8 pm, on Zoom—email for the link, info@psfs.org.
A Hugo and Nebula finalist, author Marie Vibbert’s short fiction has appeared over 100 times in top magazines like Nature, Analog, and Clarkesworld, and been translated into Czech, Chinese and Vietnamese. Her debut novel, Galactic Hellcats, was long listed by the British Science Fiction Award and her work has been called “everything science fiction should be” by the Oxford Culture Review.
She is the editor of the 2026 Triangulation anthology “Bad Romance.” She also writes poetry, comics, and computer games. By day she is a computer programmer in Cleveland, Ohio. Learn more at marievibbert.com or follow her on Instagram as @MarieVibbert or on Bluesky as @reasie.
PSFS meetings are free to attend. Information about PSFS can be found on the Society's website here: https://psfs.org.
1 attendee
PSFS May 2026 Author Presentation (online/Zoom) - guest S.T. Joshi
·OnlineOnlineThis event will be virtual only and held via Zoom; please email the address "info@psfs.org" to receive the link.
Our guest speaker for February 2026 will be S.T.Joshi.
Additional information on our guest will be added closer to the event!
PSFS meetings are free to attend. Information about PSFS can be found on the Society's website here: https://psfs.org.
1 attendee
PSFS June 2026 Meeting (in person) - Guest speaker TBD
Saint Mary's Church at University of Pennsylvania, 3916 Locust Walk Philadelphia, PA 19104, Philadelphia, PA, USThe June 2026 meeting of PSFS will be held in person at Saint Mary's Church, located on the campus of the University of Pennsylvania (Hamilton Village) in Philadelphia. Street and garage parking are nearby, and the location is near SEPTA transit stops. PSFS meetings begin with club business, followed by the author or artist guest talk and Q&A.
The guest speaker for the June 2026 meeting will be announced closer to the date.
Information about PSFS can be found on the Society's website here:
https://psfs.org.1 attendee
Past events
102


