I don't think our descendants will do much space exploration as humans. Rather, it will be as robots, or as yet unconceived beings.
Until then, O'Neill cylinders, not Mars, is where I would prefer we devote our energies.
https://en.wikipedia.org/wiki/O%27Neill_cylinder
Until then, O'Neill cylinders, not Mars, is where I would prefer we devote our energies.
https://en.wikipedia.org/wiki/O%27Neill_cylinder