reply to post by Maslo
Oh, there will be digging on Mars. But it isn't for a place to colonize.
Humans still need light. And humans need food. Food needs the Sun.
Can it all be done artificially? Sure. Very very very expensively.
And everything done in the next couple of hundred years needs to be KISSed and "inexpensive." Because even the most inexpensive models are going to
insanely wildly expensive.
We are crossing the great ocean in a Kayak, while dragging along air, and a supply of food, and knowing that there is no possibility of relief for
either when the kayak docks on the other side.
Using the Sun isn't optional. It is absolutely necessary. And it is deadly.
Not enough water. Not enough water. Not enough water. Even if they find water frozen there is still Not Enough Water. It is not big enough to
sustain a magnetic field - already proven. We don't have the technology to artificially create this. Even if we did, it would still be wildly
expensive to maintain compared to a moving core. Which would also be wildly expensive to try and "reboot." Not an ongoing-ly expensive as
artificially maintaining it.
Living permenent underground doesn't work for humans. Living on the surface isn't optional for long term residency. It is fine for the sort of
settlement I already described - transitory skilled workers in "brief" stints.
To artificially maintain it would mean that the colony would need to be insanely wealthy. Which it won't be. It may become moderately wealthy
eventually. People here will NOT maintain another planet's special living systems. You think the complaints about the welfare system are bad
now.... Another human colony must be mostly self-sufficient, or so important that maintenance is considered a necessary evil.
Earth isn't big enough to feed two planets of people. And Mars isn't, and never will be, a farm planet. Raisins will be more expensive than bricks
of gold. Water wars here will be nothing to the thirst of completely reliant colonies and stations.
One day they may figure out how to drain Venus's atmosphere of its problems. One day they may figure out how to crack its crust. And figure out how
to reflect some of its heat. And it still won't be sustaining a large population.
They'll eventually figure out how to warm some of Mars with the same technology turned the opposite way.
And it still won't be enough to maintain more than a few tribes of people.
Your answer - there is NO WHERE else in this system which will maintain any sort of human population of any significant size.
If there was that possibility - there would be something there right now. There is one habitable planet in this system, and we are already on it.
There are three candidate planets in this system. And one is baked, and the other died, and the last one sat in the middle and is going to freeze
into a big ball of snow eventually.
The rest of the planets in this system are practice balls of dust. Mars will be special, because it is the gateway to the next important step -
resource mining the system for the materials and capital to create the big boats to cross the ocean in sufficient numbers.
OH, and to the person with the "rape" comment. The other planets around this star are dead. There is nothing there. Maybe some people rape rocks
- but these perversions in personifying rock doesn't actually make those floating rocks more than floating rocks.