Robots can do all the work we need to do and do it for many many years, like the space probes we've sent and are still working after so long. We do the exploration by proxy then, what's wrong with that? Eventually humanity may even be followed by a cybernetic civilization, if we can manage the tech before we go extinct.
Why not go out into space? We have the resources, if we can stop wasting it. We have the technology, if we can get some projects together to actually do it. Hell, we haven't progressed in space in 40 years, since Skylab. That's pathetic. Right now small companies are doing what it took NASA and the military orders of magnitudes more time and resources to do, send stuff into space. Screw Apollo. That was not the way that the scientists wanted to do, with a couple of guys in a tin can for a couple of days, but we had to get it done before the "end of the decade." This Manhattan Project. The best and brightest given all possible resources working on a common goal. The only thing stopping us from being permanently on the moon is the apathy of the population and the corruption of the elite.
We need to stop looking inward toward made-up worlds, and just look up into the sky where the real adventure is. That's our universe, and we're still stuck on this tiny little rock. This has nothing to do with science. This has everything to do with being scared to take those first steps.