Another great bus convo

Last week I was taking the bus home and had a most educational conversation with a young lady of around 4 years old:

Child: The sun is going away!
Me: That's right!  It's night time, so the sun is setting.
Child: It's going away so it can come back again.
Me: Yes, that's right.  You know a lot about the sun!
Child: Look at that!  (points at light overhead)
Me: Okay, I'm looking at it.
Child: That's like the sun, but it's not the sun. 
Me: I think I understand.
Child: That's all I know about the sun.

SUN FACTS.  I'm telling you, you learn the best things on the bus.