If you like The Lowest Heaven, why not try more stories from the anthology's amazing contributors?
Sophia McDougall ("Golden Apple"): Her Mars Evacuees series starts in 2014, but you can find more of Sophia's short work in, amongst other places, Dark Currents and Magic. Plus her Romanitas trilogy is great for more character-focused SF. (Her story for Jurassic London, "Not the End of the World" appeared in Stories of the Apocalypse and as a separate novelette. Both are out of print, but if you can find one... grab it!)
Alastair Reynolds ("A Map of Mercury"): Where to start with one of the biggest names in British SF? Revelation Space is probably the best place, his first novel and one of the greatest works of modern British space opera. Rumor has it, it will shortly be available as as Gollancz Masterwork. Mr Reynolds' new series, Poseidon's Children, is another good entry point: Blue Remembered Earth is a gorgeous tour of the Solar System in its own right.
Archie Black ("Ashen Light"): Archie's short fiction has appeared in our Apocalypse and Smoke (both out of print), as well as several of our chapbooks (all free!) but if you liked her approach to the literary murder mystery, "4.52 to Pandemonium" (in A Town Called Pandemonium) is a good next step.
Maria Dahvana Headley ("The Krakatoan"): Her novel, Queen of Kings, is a blast (especially when you contrast it to Maria's story in the upcoming The Book of the Dead), but Maria's also had a lot of short fiction published - worth checking out issues of Lightspeed in particular. Neil Gaiman grabs the headlines, but Maria co-edited and contributed to the gorgeous Unnatural Creatures anthology, a great collection for a charitable cause.
Adam Roberts ("A voyage, 1726"): There's no shortage of work from Mr. Roberts - in fact, choosing where to begin can be kind of daunting. BMy suggestion would be Adam Robots, his recently-released collection of short fiction. It showcases the breadth and diversity of Mr. Roberts' short fiction ouevre. (One is allowed to use words like ouevre to describe Adam Roberts.) Alternatively, in the mood for a novel? The impeccable Jack Glass. More quasi-historical SF goodness? Swiftly or "The Crime of the Ancient Mariner" from Resurrection Engines.
Simon Morden: ("WWBD"): A tricky one. For pure SF, Mr. Morden's Petrovitch series - starting with Equations of Life - is hard to beat. It is more contemporary and cyberpunky than his contribution to The Lowest Heaven, but still has that same sense of moral dilemma. On the other hand, Thy Kingdom Come contains many more examples of his short fiction. Obviously I'm biased, but it is worth tracking down. (Paula Guran's After the End contains one of Mr. Morden's most heart-wrenching stories, and is out now from Prime.)
Jon Courtenay Grimwood ("The Jupiter Files"): Another tricky one. If you like Mr. Grimwood's contribution to The Lowest Heaven, try his Arabesque sequence. The same noir-with-a-twist vibe, but spread out over three gorgeous books. His new book, The Last Banquet (as Jonathan Grimwood), has almost nothing in common with "The Jupiter Files" except, of course, they're both amazingly well-written. (Review!)
Mark Charan Newton ("Magnus Lucretius"): Mr. Newton has bent genres in the past with his Legends of the Red Sun sequence, but if you're in the mood for more antiquity-tinted speculative fiction, you should pre-order his new fantasy/mystery, Drakenfeld.
Kaaron Warren ("Air, Water and the Grove"): Ms. Warren has a wealth of (award-winning) short fiction - if you liked "Air, Water and the Grove", you've got volumes of fun ahead of you. The Glass Woman and Dead Sea Fruit are two of her collections, and you can't go wrong with any one of them. [Her uncollected stories are all linked to from her site as well.]
Lavie Tidhar ("Only Human"): It is actually difficult to find an anthology that doesn't contain a great short story from Lavie Tidhar. That said, "Only Human" is part of Mr. Tidhar's sprawling Continuity Universe, so if you enjoyed the setting, there are dozens of ways you can continue exploring it. Outside of that setting, his novel, Osama, although on a slightly different theme, is one of the great literary/science fiction works of the past decade. That bodes well for The Violent Century - out this fall.
Esther Saxey ("Uranus"): Ms. Saxey is better known for her non-fiction, but publishers are catching up. Her pinnepedian horror short, "The Collection" came in to Stories of the Smoke as an open submission and is one of our all-time favourites. Her story for The Lowest Heaven is another example of her inventive, imaginative vision. Keep watching.
David Bryher ("From This Day Forward"): Another writer better known for his non-fiction (for now), Mr. Bryher's probably written eight zillion words, many of them on a certain time-travelling, blue-boxed fop. His short fiction can be found in some of Big Finish's Short Trips series - especially Seven Deadly Sins, which he also edited. If you're feeling a little younger at heart, grab The Web in Space.
S.L. Grey ("We're Always Be Here"): If you liked the dark comedy and, er, darker horror, of S.L. Grey's contribution, definitely snag The Mall and The Ward and blitz through them as rapidly as possible before The New Girl comes out this fall. S.L. Grey's short fiction can also be found in Still. If you break Grey down into its constituent parts of Sarah Lotz and Louis Greenberg, you get two more sources of spectacular fiction... they're like the gift that keeps on giving.
Kameron Hurley: If you liked "Enyo-Enyo", run, snag God's War immediately and thank God (War-ring or not) that it also has two sequels for you to enjoy. High-octane, feminist, brutal, action-packed, astounding science fiction.
James Smythe: Mr. Smythe has been sneaking out high-concept, characterful science fiction for a few years now - probably the most like "The Grand Tour" is The Explorer, but you can't go wrong with any of his work: The Testimony and The Machine are equally as thoughtful and as, well, mildly disturbing.
Matt Jones: Ending on a tricky one. Mr. Jones' books are hard to find, but if you enjoyed the way the tackled coming of age drama in "The Comet's Tale", you can always watch more of it in Shameless or Skins. Or, you know, indulge yourself in a boxed set of Doctor Who.