Granted that not everything spooky is on planet Earth but who knew the folks at NASA would find an unusual way to celebrate Halloween.
Check out their galaxy of horrors and solar sounds.
It has, among other spaces and places, a Galactic Graveyard, Dark Matter section Zombie Gamma Ray Ghouls, Monster Mash and Zombie Worlds. Visit them, if you dare.
While you welcome ghoulish guests to your earthly domain you may want to play some of these noises that have been gathered from space.