Propworx is hosting a seriously huge auction, selling off an incredible selection of memorabilia, including a couple of legs from Aliens' Queen, Starship Troopers Hero Morita Rifle, a jar of Mr. Green's blood, Hulk heads, BSG's star-maps, Baltar's Cylon testing kit, and more. Out of our way — we want to bid on Obadiah …

You haven't crossed the final frontier until you've had sex in space. It's the ultimate dream: weightless lovemaking. Here are 11 awesome zero-gravity sex scenes...plus one real-life zero G sexytime moment caught on video.

Still stumped on a Halloween costume idea? Maybe you can take your cue from these Halloween-loving characters from science fiction and fantasy. Check out what these folks wear to celebrate the season of horror.

To the surprise of no-one, ABC seems to have pulled the plug on Defying Gravity. The show was an attempt to marry the soap operatics of Gray's Anatomy with science fiction, and is disappearing rather mysteriously.

Fall TV season is here, including our first look at Supernatural's version of the Prince of Darkness and some vampires who scribble in their diaries. And witness the grand finale of this season's True Blood.

Supernatural's apocalypse gets a few new players, including the Four Horsemen and God. Gamer gets a few more bikini-clad pictures, and Kick-Ass gets an animated sequence. Plus, The Vampire's Assistant, Stargate Universe, The Host 2, FlashForward, Fringe, and Defying Gravity.

Let apocalyptic social experiments, and one big disastrous TV movie, save you from venturing outdoors this coming Labor Day weekend. We've piled up the best that television has to offer next holiday weekend, including some science fiction marathon madness.

Dakota Fanning goes goth for New Moon, while Del Toro grits his fangs as the Wolfman. Chuck gets a superheroic new cast member, and Paris Hilton tweets her Supernatural experience. Plus, Zombieland, Lost, Flashforward, True Blood, and Sherlock Holmes spoilers.

A new Doctor means a new TARDIS, and we've got all the rumored design details. Better Off Ted features genetic matchmaking, and Zombieland offers more survival rules. Plus Iron Man 2, Gamer, Astro Boy, Hobbit, Smallville, and Supernatural spoilers.

New pictures reveal Jamie Bamber's role in Dollhouse, and Thor may have a female Asgardian. Plus: explosive images from Gamer and Supernatural, visits to the sets of Stargate Universe and The Vampire's Assistant. Also? Hancock 2, Fringe, Eclipse, and Lost.