Neil Gaiman’s love of Norse myth has roots deeper than Yggdrasil, the World Tree, and he’s just announced that his next book will be a non-fiction retelling of those myths—but done in an “almost novelistic” style—inventively titled Norse Mythology.
You may have read that this weekend is supposed to mark the coming of Ragnarok, the violent "Viking Apocalypse" prophesied in Old Norse poetry. But the mythical apocalypse that inspired Game of Thrones' long winter isn't actually on the books—and may refer to events that happened centuries ago.
Saddling up your faithful steed to ride off into the sunset is one of those things best left to John Wayne. Sometimes. Here are some of science fiction's best substitutes for our friend, the horse.