Browsing the internets, I came across this rather neat article about Earth's final solar eclipse (many, many years hence). Check it out here. It talks about the moon moving away from the Earth until one day it will be too small to completely cover the sun in our sky.

If that sounds familiar, it might be because of this post I wrote about the moon being closer to the Earth in the (now cancelled) TV show Terra Nova. (Hint: not for the reasons they said in the show.)