I was showing Andrew the Astronomy Picture of the Day today. The picture is of the crab nebula. I was explaining to him that the nebula was formed when a star exploded. This lead to quite a few questions about stars and astronomy type things in general. Eventually we made our way around to talking about our sun.

Andrew: "Is our sun going to explode?"

Me: "Yes, but probably not for something like 10 billion years. Do you understand how big a billion is?"

… long discussion about grains of sand in the sandbox etc…

Andrew: "Wow! That is a long time. Dad, this is sad to say but you are old. Mom is old too, but not as old as you. But I am not that old. So it’s sad to say, but people die when they get really old. And you and mom will be dead before our sun explodes."

Me: "Yes, yes we will."

And for the record, I am only 3 months older than my wife emoticon