A New Justification For Returning To Space? Or Just The Same Old One.

So I was sitting in the bar of a local cafe, enjoying that burger they do so well, and some people were talking about space - whether or not we should invade Mars or whatever. Basically, whether we should be spending resources on manned space missions. So one guy there sums it up with:

"Basically, the moon is our bitch. We need to make Mars our bitch, too."

Now, under other circumstances, my ideal comeback to that statement would be to look the dude in the eye and say, "That's all well and good, pal, but we better stop there. Ain't no way we'll ever make Jupiter our bitch."

But for various logistical reasons, I wasn't really able to offer this as a comeback.