I thought, why should we make life on Mars when we can easily build a large spaceship (like an American aircraft carrier) for human habitation.
Aircraft carriers are not spaceships. Plus, the future generations of those "humans" will look and move different than us, and won't be able to return to earth.
That's why I see humans in the future who volunteer to Mars seem to be on a suicide mission. the thing that I worry about them experiencing is the structure of their body or organs in their bodies that change (btw I fictional movie maniac of the future).
their success will be the greatest human achievement of the last few centuries. returning to earth would be very difficult and complicated. hope I die on earth and with my family around.