Let’s say we suddenly developed super-fast propulsion systems that could transport massive quantities of oxygen and food to the far reaches of the solar system.
Which of the solar system’s planets and moons could we settle–today and, say, 100 years from now?
Is the dark side of Mercury cool enough–or would the solar radiation and cosmic rays prove too damaging?
Yes, Venus has crushing atmospheric pressure, but could it be counteracted somehow?
Same with Jupiter’s moons: Would the radiation be too harmful?
My guess is:
Mars and moons: yes
Asteroid belt: yes
Jupiter: never moons: not for long periods
Saturn: no Moons: not for long periods
Uranus and Neptune: no Moons: yes.
Next, guesstimate if any technology that might be developed in, say, the next 100 years would make a difference. (Too difficult to guess technological development? Tough. Do it anyway!)