ZENBy JEROME BIXBY......Because they were so likable and intelligent and adaptable—they were vastly dangerous!IT'S difficult, when you're on one of the asteroids, to keep from tripping, because it's almost impossible to keep your eyes on the ground. They never got around to putting portholes in spaceships, you know—unnecessary when you're flying by GB, and psychologically inadvisable, besides—so an asteroid is about the only place, apart from Luna, where you can really see the stars.There are so many stars in an asteroid sky that they look like clouds; like massive, heaped-up silver clouds floating slowly around the inner surface of the vast ebony sphere that surrounds you and your tiny foothold. They are near enough to touch, and you want to touch them, but they are so frighteningly far away ... and so beautiful: there's nothing in creation half so beautiful as an asteroid sky.You don't want to look down, naturally.