re: "If it's just us, it seems like an awful waste of space..."
I remember the phrase from the movie Contact with Jodie Foster and Matthew McConaughey the man who said the line. I believe it was at the end of the movie when he said; If not it's an awful waste of space when asked if he thought there was life beyond Earth.
I don't know what happen to my book so I can't look there. Think I loaned it out.
More cool wallpaper from Hubble!
