Beyond Moon, I don’t think Mars is likely to be our destination.
Come on! What does one gain by going to Mars? Good dose of gravity, what else?
I have recently heard about a company trying to mine asteroids. In my opinion, that is the best exploitation of our ability to explore space, provided we find interesting minerals on asteroids.
Mining on Earth has numerous environmental problems. There is also a problem of displacing human beings.
Mining asteroids is better in this sense. Also, it will be very energy efficient mining too because very less gravity needs to be handled.
As we discussed earlier in this, “Absent Labor” category, human beings sitting on Earth, can guide robots far away.
Once Platinum or better, Titanium, starts showering from sky, more wealth will be generated that can be exploited to conquer Mars.