Talk about Saturn's moons is sampled from educational documentary 'Voyager'.
On both sides, the grooves open up a few times, representing Saturn's satellites' orbits around the central label, which represents Saturn itself.
B1 plays at 45rpm
B2 & B3 are locked grooves.
B4, "hidden" behind the lock grooves, plays from the inside-out.
On side A, during the spoken intro, the grooves are very loose and there is space between them, adding to the visual effect. Between the grooves are numbers counting up on one side and down on the opposite side:
+1 with -1 on the opposite
+2 with -2 on the opposite
+3 with -3 on the opposite
+4 with -4 on the opposite
+5 with -5 on the opposite
+6 with -6 on the opposite