automator vs apple script

hey guys, i tried to look around.. but can anyone please explain. I saw in utilities that there is a application called "automator".. also i hear about apple script. Seems like both does the same thing right? Whats the difference? is automator just visual interface for creating apple script? and the end result of automator is apple script that i can run?
anyone can point me to right direction?
1) what is apple script
2) what is automator
3) is the end result of automator an apple script...

automator vs apple script