There are tons of sites out there with reviews of science fiction books — but what if you want the nudist perspective? The site Yarns Without Threads has you (metaphorically) covered.

We think of Jimi Hendrix as a psychedelic mastermind, but his trippy imagery actually had a more scientific starting point. According to a new biographer, Hendrix was hooked on science fiction, and his song "Purple Haze" is based on SF.

The history of science fiction is full of unforgettable characters. So it's no surprise that famous writers often appear in fiction themselves — either by name, or wearing the thinnest of disguises. Here are our 10 favorite science-fiction writer cameos.

There's a lot going on in 1972's Hugo-winning novel, Philip José Farmer's To Your Scattered Bodies Go. But in this introduction to his legendary Riverworld, the waters can get a bit choppy and muddy.

Who knew there was this much raunch in Syfy's adaptation of Philip José Farmer's Riverworld books? Tahmoh Penikett is naked/in bondage, while another character practices Kama Sutra on Mark Twain's steamboat. This weekend's Riverworld promises to be quite the experience.

Have we gone multiverse crazy? Iain Banks' latest novel, Transition, is just the latest of a long line of sideways-traveling books, and this theme is more prevalent than ever. Here are some of my favorites, with spoilers and foul language.

Orbit Books is trying to create the worst science fiction book cover of all time — but they're up against stiff competition. Details, and a gallery of some of our fave bad covers, are below.

A faithful adaptation of Philip José Farmer's Riverworld novels would be nigh impossible, but the Syfy Channel's upcoming Riverworld miniseries plans to veer off into such uncharted waters that readers may not recognize it.

Sex and science fiction have not always been the most obvious partners; combining the two has occasionally defeated even the genre's greatest luminaries. But here are ten authors who successfully brought sex into the future.