Collecting the signatures of science fiction

A clear, independent guide to autographs, photos and screen memorabilia from the films and television series that built modern fandom — how to start, how to verify, and where it all comes from.

For decades, fans have kept a tangible piece of the stories they love: a signed photograph, a cast-autographed print, a prop card or a convention program touched by the people who brought a character to life. Space Debris is an independent resource that explains how that hobby works — without selling anything. We cover the practical mechanics of building a collection, how authentication and certificates of authenticity protect buyers, the central role of fan conventions, and the collecting culture that has grown up around major science-fiction and television franchises.

Everything here is written for collectors and the curious. We don't deal, broker, or appraise. Instead we try to give you the vocabulary, the warning signs, and the historical context you need to make your own informed decisions.

Start here

Guide

Beginner's guide to collecting

Choosing a focus, setting a budget, where signatures come from, and how to store and display what you find.

Guide

Authentication & provenance

How certificates of authenticity, in-person witnessing, and provenance chains work — and how to spot a forgery.

History

The convention connection

Why fan conventions are the beating heart of autograph collecting, from the 1970s to the modern signing circuit.

Reference

Collector glossary

COA, provenance, in-person, secretarial, UACC, masterprint and the rest of the jargon, explained plainly.

A deep field of stars representing the science-fiction themes at the heart of the collecting hobby
Science-fiction fandom turned screen stories into a tangible collecting culture spanning television, film and the convention circuit.

Franchise hubs

Each hub gives an editorial overview of a series' collecting culture: its cast, the kinds of memorabilia that circulate, and what newcomers should know.

Star Trek

The franchise that arguably created autograph fandom — five live-action eras and a deep, devoted collector base.

Star Wars

A cinematic phenomenon whose cast signatures are among the most recognizable — and most forged — in the hobby.

Buffy the Vampire Slayer

The show that defined a generation of genre television and a popular target for cast and group signatures.

Batman

From the camp 1960s series to the blockbuster films — a crossover favorite among genre and pop-culture collectors.

See all franchise hubs →

A note on what we are. Space Debris is a reference site, not a shop. You won't find prices, listings, or order forms here — just guidance written by collectors, for collectors.