Stamps for sending a letter to outer space: The Stamp Collector's Guide to the Galaxy.

Ufology and philately share at least one thing: a passion for collecting, whether it be news clippings on unexplained cases or first day covers. From the mid-1970s onwards ufologists have had plenty of opportunities to combine these passions in the form of flying-saucer stamps.

The stamp collection of Luis R Gonzalez Manso includes a British Dalek stamp. (via The Cartoonist)