Space: At the Current Rate

So I have explained in the past I feel that NASA and space exploration are important to our future. With the Space Shuttle program coming to an end, the last flight of Endeavour will occur once they fix whatever the problem is, xkcd released a comic today showing that by 2035 we will likely have no one alive who has walked on another planet/planetary body/world. Make sure you go to the comic itself and mouse-over the comic, I agree completely with them.