From space slugs to lunar cemeteries, these movies, games, and books show that the undead can arrive from above, as well as below.

I always get a bit uneasy around zombie movies that seem to relish killing zombies. There are exceptions like "Zombieland," ...

We may receive a commission on purchases made from links. Are we alone in the universe? It's a huge question with no easy answer. And, following on from that, if we aren't alone, what would beings ...