You don’t want me to answer this question. You are looking for a great, positive answer that will make the future look bright not only for colonies on these places, but an economic base for those colonies.
Meanwhile, I’m going to say I don’t think there’s much justification even for people walking on Mars when our robots can do it more safely and less expensively and achieve the same or better results…. what to speak of “colonies.” I think it’s almost laughable and mostly just science fiction dreaming.
People may or may not one day walk on Mars at great risk, and some will probably die in the attempt. There is little reason to go there from a scientific point of view other than to say we did, just like we walked on the moon and then went away.
In the meantime, a safer, cheaper way is send our machines to go.
You see, what this is all about is finding life. What scientists want to do is prove that life can evolve elsewhere than Earth – a so far unproven theory. We want there to be life elsewhere because we want to prove that life was not “created” on Earth alone, but life naturally develops from matter when conditions are ideal.
We don’t need “colonies” or economic bases in space to prove that. We just need to find some germs under some rocks or on some moon around some planet in our solar system. For that we just need space vehicles and robots like the Mars Rovers.
Whether we find life or not is anyone’s guess, but it is still science fiction thinking we will colonize anything off planet.
Venus is Earth’s sister planet. It has almost the same size and gravity as Earth.
As you know, the Venus atmosphere is extremely harsh. So bleeding into space would be one way to make the planet more friendly to people.
The one big thing about Venus is that it’s atmosphere is way thicker than Earth’s. There’s no known technology that could somehow siphon all the air from Venus and send it adrift in space anymore than we could siphon all our CO2 on Earth into space.
Probably, and that’s why terraforming is a bad idea. Inside the scientifically minded community, there are two distinct ideas.
Don’t contaminate. Leave whatever planet it happens to be in the original pristine condition so we can study it. (This is the predominant, tree hugging concept.)
Screw number 1. Terraform the planet. Make it livable for humans, existing organisms, if they exist at all, be damned.
That being said, we do try all we can not to contaminate planets we send probes to even though some microorganisms may have made it through.
At present, and probably rightly so, NASA does not want to introduce organisms to other planets – or visa versa – introduce to Earth organisms from other planets on Earth. We may have already failed, but we still try.
We spend 600 billion dollars every year on the military. What would happen if NASA had that kind of money? Here’s a very cool YouTube video that I love to watch!
Although, scientifically, we could do as much or more with our rovers, robots and probes than manned space travel, and we can and do it cheaper and safer than manned space travel with our probes and rovers, people will still go to Mars.
Why? Well, I suppose it’s the same reason people went to North America or climb Mount Everest. Because it’s there.
I don’t want to move to Mars. It’s a very dangerous environment, you’d be indoors all the time or else wearing a spacesuit for short adventures outdoors. I don’t even think it’s advantageous for humans to go to Mars at all when we could just as well, and for much less expense, send our probes and robot rovers there instead. There is no good scientific reason to go to Mars.
People will go, however, because not everyone is scientifically minded.
Just as soon as we can solve the problem of only going 20 times slower than 1 tenth the speed of light, our fastest speed to date. Sadly, the ability for humans to send humans to other stars will most likely never happen.
We have already commercialized space travel. Private companies are now being paid to resupply the International Space Station on a regular basis, and commercial companies are hiring SpaceX, another commercial company, to place satellites into orbit.