HDSF Choose your vacation: Pleasure Planet, Paradise Planet, or Hell Planet Jesse Sheidlower

HDSF What is Thionite? Science fiction's narcotic good stuff Jesse Sheidlower

Historical Dictionary of Science Fiction Rigellian: the science-fictional inhabitants of a bright blue star Jesse Sheidlower

Historical Dictionary of Science Fiction Otherspace: a science-fictional place for when no other space will do Jesse Sheidlower

HDSF Meet the Space Bum, ambiguous stock character of generations of science fiction Jesse Sheidlower

HDSF Cereans live on Ceres (in the future) Jesse Sheidlower

HDSF A conapt is a bad place to live—unless you're the protagonist of a science fiction story Jesse Sheidlower

HDSF Meet the Terrenes, the people of Earth in (some) science fiction Jesse Sheidlower

HDSF What does it mean to fan—or fangirl? Jesse Sheidlower

HDSF When you need to Get Away From It All in science fiction fandom, that's… Gafia Jesse Sheidlower

HDSF Have you committed a Time Crime? Maybe you will… Jesse Sheidlower

HDSF What is a "problem story" in Science Fiction? Jesse Sheidlower

HDSF How to stymie telepathic intruders (in the Historical Dictionary of Science Fiction) Jesse Sheidlower

HDSF Quakes (not on Earth): a new entry in the Historical Dictionary of Science Fiction Jesse Sheidlower

HDSF Telescanner: a new entry in the Historical Dictionary of Science Fiction Jesse Sheidlower

HDSF Plastiskin: a new entry in the Historical Dictionary of Science Fiction Jesse Sheidlower

HDSF "Planet" as a verb: a new entry in the Historical Dictionary of Science Fiction Jesse Sheidlower

HDSF Three feminine forms in the Historical Dictionary of Science Fiction Jesse Sheidlower

HDSF What is an "inhuman"? A new entry in the Historical Dictionary of Science Fiction Jesse Sheidlower

HDSF What is a Supervillain? A new entry in the Historical Dictionary of Science Fiction Jesse Sheidlower