Neptune and Pluto

[Supernick]

With Pluto travelling on a tilted axis with, and often closer to the sun than it's nearest neighbour Neptune, will there be a time when the 2 collide. Has anyone tried to work this out or will it be long after the sun has expired and therefore pointless?

[jake-the-peg]

You're not the first one to ask this!

http://www.astronomycafe.net/qadir/q364.html

Is a nice concise answer