[postingawayonhn]

You'll need to launch more mass to get there but the technology isn't really any more complicated. It's also a more hospitable environment (reasonable gravity, day/night cycle, some atmosphere, water, etc.)

[ramblenode]

It's a significant feat to even get a robot safely to Mars. We've never gotten one back to earth. I think you are underestimating the complexity.

[wkat4242]

You'll need to sustain the astronauts for much longer and they'll be subject to a lot more radiation. That's not exactly easy.