Here's one I saw yesterday: NASA imagines Earth-like worlds: Computer models provide specs for 14 different planet types.
I think it's interesting to ponder the idea that we are not alone in the universe. It's such an enormous place with so many possibilities. I wonder if it will be in this life (as in life on this planet) or in another after-life that we will become aware of and interact with the other sentient-beings that must exist.
PS: There are some AMAZING pictures in Space.com's Image Library. Take a look! :D