[Bored chemist]

It`s much easier to preserve Earth

How do you plan to stop the Sun expanding near the end of its life?

[Bored chemist]

trying to colonize other planets where it`s impossible to live.

The plan is to colonise planets where it IS possible to live.

[alancalverd]

Should we care? Nobody worried too much about the dinosaurs. If the end happens slowly, our descendants will get used to it, like the desertification of the Sahara.  If it happens quickly, what's the problem? A bit of chemistry happened on a rock, then it evaporated.

[bearnard1212 (OP)]

trying to colonize other planets where it`s impossible to live.

The plan is to colonize planets where it IS possible to live.

As I have already mentioned, there is no such planet in the Solar system, the most similar to Earth planet is Venus. But unfortunately, we can`t even get there because of the high pressure and high temperature.

[hamdani yusuf]

Life is the cradle of the life as we know it, but no one should live in the cradle forever. Or more precisely, no one should die in the cradle without ever going anywhere else.

[hamdani yusuf]

Should we care? Nobody worried too much about the dinosaurs. If the end happens slowly, our descendants will get used to it, like the desertification of the Sahara.  If it happens quickly, what's the problem? A bit of chemistry happened on a rock, then it evaporated.

I believe dinosaurs did worry about their own and children's lives.
Those who care just happen to be more likely to survive compared to those who don't.

[hamdani yusuf]

As I have already mentioned, there is no such planet in the Solar system, the most similar to Earth planet is Venus. But unfortunately, we can`t even get there because of the high pressure and high temperature.

Humans can already live in ISS for years now.
Venus is similar to earth only in size and distance to the sun. Their temperatures are much different. Venus is the hottest planet in our solar system.
Condition on Mars surface is more suitable for human life since room heater is much easier than room cooling.
Mars colonisation is just a stepping stone to a more ambitious goal, which is building a multistellar civilization. 

[charles1948]

Should we care? Nobody worried too much about the dinosaurs. If the end happens slowly, our descendants will get used to it, like the desertification of the Sahara.  If it happens quickly, what's the problem? A bit of chemistry happened on a rock, then it evaporated.

Absolutely!   One shouldn't treat a biological incident as a cosmological tragedy.

[Halc]

We still can save it. There is no such planet like Earth in the whole Solar system.

Save it from what?  It seems to me that what the environment needs saving from is us.
And no, humanity seems entirely incapable of doing what it takes. I've seen no viable suggestions from anybody, and this whole thread seems to revolve around plans to destroy another planet in addition to this one.

Actually, the natural course of things seems to be on a good path for self-correcting the problem as has always occurred in the past. The elimination of civilization will halt the progression of the Holocene extinction event, and the subsequent presence of humans or not seems not to matter from that point onward. New species will replace the ones lost. The planet is not in need of being saved.

[hamdani yusuf]

The vast majority of volume in the universe is nearly vacuum deep space. So anyone wants to survive should learn and try to live there. And if they want to find less surprises, they need to build an accurate and precise virtual universe.

[hamdani yusuf]

New species will replace the ones lost. The planet is not in need of being saved.

Unless when entire earth is no longer habitable, such as when it merge into the sun. Unconscious beings need nothing. It's just some conscious agents happen to live there want to survive, and are trying to figure out how. It's  something we can learn from the movie Thor Ragnarok.

[bearnard1212 (OP)]

New species will replace the ones lost. The planet is not in need of being saved.

Unless when entire earth is no longer habitable, such as when it merge into the sun. Unconscious beings need nothing. It's just some conscious agents happen to live there want to survive, and are trying to figure out how. It's  something we can learn from the movie Thor Ragnarok.

Yeah, but in Thor Ragnarok, asgardians had an alternative plan where to go after the Asgard had been completely destroyed. And we don`t have this plan. We don`t have the alternative place where to go like asgardians had in that movie.

[hamdani yusuf]

Yeah, but in Thor Ragnarok, asgardians had an alternative plan where to go after the Asgard had been completely destroyed. And we don`t have this plan. We don`t have the alternative place where to go like asgardians had in that movie.

We don't have it yet. That's why some of us want to build one.

[bearnard1212 (OP)]

Yeah, but in Thor Ragnarok, asgardians had an alternative plan where to go after the Asgard had been completely destroyed. And we don`t have this plan. We don`t have the alternative place where to go like asgardians had in that movie.

We don't have it yet. That's why some of us want to build one.

So, the Solar system doesn't have such a planet as Earth that humans can live there without any problem. That fact I have already mentioned in that discussion. There is a possibility that such a planet like Earth or similar to it exists in another galaxy but that is much more difficult task than travel to Mars.

[hamdani yusuf]

So, the Solar system doesn't have such a planet as Earth that humans can live there without any problem. That fact I have already mentioned in that discussion. There is a possibility that such a planet like Earth or similar to it exists in another galaxy but that is much more difficult task than travel to Mars.

A thousand miles journey starts with the first step. The goal of space exploration is not limited to finding other planets like earth. There are other ways such as terraforming.
I've mentioned in other thread that the vast majority of volume in the universe is nearly vacuum deep space. So anyone who wants to survive should learn and try to live there. We could build spacecity or city sized spaceships. Planets, moons, asteroids and comets could be used as material sources. In short, we should be independent from any particular heavenly body, such as earth or the sun.

[charles1948]

What would be the advantage of living on Mars, from living on Earth?

[Halc]

What would be the advantage of living on Mars, from living on Earth?

Gets your name in a history book, if there's anybody around to write one.

If the colony doesn't die out, it's a fantastic way to have a significant number of descendants.

[charles1948]

What would be the advantage of living on Mars, from living on Earth?

Gets your name in a history book, if there's anybody around to write one.

If the colony doesn't die out, it's a fantastic way to have a significant number of descendants.

I get your point. Looking at it from an individual perspective. As a pioneer explorer of Mars. Mucho kudos.

Is that all?  Are there any benefits to human life?
-

[alancalverd]

As a physical scientist of any description, what could be more fun than a whole new planet with lots of undiscovered geology, geography, atmospheric physics,  huge stable platform with a thin dry atmosphere for astronomy.....to say nothing of the opportunities for structural engineering at 0.3g with no significant wind - think of the telescope you could build!....crap posting for botanists and zoologists, perhaps, but just suppose you found a hint of complex organic chemistry in an apparent desert?....meanwhile, imagine the joy of doing complex surgery on an entirely sterile planet!

[charles1948]

As a physical scientist of any description, what could be more fun than a whole new planet with lots of undiscovered geology, geography, atmospheric physics,  huge stable platform with a thin dry atmosphere for astronomy.....to say nothing of the opportunities for structural engineering at 0.3g with no significant wind - think of the telescope you could build!....crap posting for botanists and zoologists, perhaps, but just suppose you found a hint of complex organic chemistry in an apparent desert?....meanwhile, imagine the joy of doing complex surgery on an entirely sterile planet!

You make a good case for Mars.  But the same advantages could be gained from Luna, which is much closer.

On your point about complex organic chemistry, many observers of the Moon have noted subtle colour changes on the lunar surface,  which could be attributed to vegetational growth.

To back this up, one of the most respected past students of the Moon, W.H Pickering, claimed that the darkening of lunar craters, such as Plato, was caused by the massing of lunar insects. Like locusts.

That seems implausible.  But the Moon may have many secrets to reveal.