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8 hours ago, TigerTedd said:

And 100 years ago, we didn’t think walking in the moon was possible. 40 years ago, we didn’t think that instantaneous communication between the masses was possible. 20 years ago, we didn’t think fitting an entire library’s worth of songs in your pocket was possible. Yesterday we didn’t think landing a rocket after shooting a mannequin to mars was possible. Imagine what we think is not possible now, but might be possible in 20 years time. 

No comparison.

A man in a protective suit might walk on mars. But thats a bit different to colonising a planet. You stand more chance of survival on Death Row.

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1 hour ago, David said:

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As long as they don't need oxygen, nitrogen, hydrogen, water, heat, food, minerals, vitamins, medicines, and fuel, and they don't kill each other then should be ok as long as the batteries last. 

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Just now, RamNut said:

As long as they don't need oxygen, nitrogen, hydrogen, water, heat, food, minerals, vitamins, medicines, and fuel, and they don't kill each other then should be ok as long as the batteries last. 

To be honest I was already sold on the idea any hope of populating Mars is laughable....unless we’re thinking of the future robots.

Not against Space Travel, but think we should be use looking to extend the life of this planet we’re on.

First job, deal with Trump.

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13 hours ago, RamNut said:

Well i could go on for hours to explain why it isn't possible - especially on Mars.

why would anyone think it is possible?

life on this planet has evolved after 4.5 billion years to create a biosphere which is unbelievably complex and well adapted to life on this particular temperate planet which has plentiful water, and - after 2.5 billion years - oxygen. It is almost comical to believe that Man could recreate that same sustainable bio-diversity on another planet from scratch, not least when the target planet is hostile, airless, dry, freezing, barren and bombarded by radiation. the life forms which we would want to transplant there are not adapted to that environment.  life would either starve, freeze, die of thirst, sunburn, or cancer. On the remote chance that bacterial life forms exist on mars then you might add  new and unknown diseases to the list of potential killers. 

You are assuming that life on other planets requires people to live outdoors. It is not impossible to conceive of mankind building self contained structures in which people can live outside of our atmosphere.

Not so long ago in human history people would have said it was comical to believe we would leave earth's atmosphere, let alone land on the moon. People probably thought the Wright brothers were mental back in the day. I could go on...

My point is as a species we learn and solve problems, living outside of Earths atmosphere is a problem we will learn to solve. If we always placed limitations on our ambition as a species by simply giving up because it doesn't sound like it would work or sounds a bit hard then we wouldn't have the quality of life we do now.

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1 hour ago, RamNut said:

No comparison.

A man in a protective suit might walk on mars. But thats a bit different to colonising a planet. You stand more chance of survival on Death Row.

It won’t happen overnight, but the theory is all laid out to start a colony underground with the occasional pressurised biosphere / greenhouse on the surface to paraterraform, then start populating the surface with various algae’s and hardy bacteria that’ll soak up the co2, create oxygen, and break down into methane to create an ozone and terraform the surface. That’ll take a century or two though. 

The stuff I’ve read says that colonising the moon (with the underground / biosphere paraterrorming plan), or even asteroids in geostationary orbit, would be a better short term plan, as a stepping stone. We should walk before we can run, seeing as they’re right on our doorstep, and only  week round trip if it all goes pear shaped. 

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When those two boosters came in almost simultaneously to settle on their pads, it felt like the 21st century had arrived.

Woohoo for humans.

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1 hour ago, needles said:

When those two boosters came in almost simultaneously to settle on their pads, it felt like the 21st century had arrived.

Woohoo for humans.

I read that the 2 boosters came back pretty much as shown by CGI, are you sure this was the actual event?  I saw a clip and they appeared to be miles away behind hedges and trees

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18 hours ago, RamNut said:

Well i could go on for hours to explain why it isn't possible - especially on Mars.

why would anyone think it is possible?

life on this planet has evolved after 4.5 billion years to create a biosphere which is unbelievably complex and well adapted to life on this particular temperate planet which has plentiful water, and - after 2.5 billion years - oxygen. It is almost comical to believe that Man could recreate that same sustainable bio-diversity on another planet from scratch, not least when the target planet is hostile, airless, dry, freezing, barren and bombarded by radiation. the life forms which we would want to transplant there are not adapted to that environment.  life would either starve, freeze, die of thirst, sunburn, or cancer. On the remote chance that bacterial life forms exist on mars then you might add  new and unknown diseases to the list of potential killers. 

How about self contained sustainable colonies there, without the need for attempting to terraform the entire planet?

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3 hours ago, Ellafella said:

Non-stick frying pan and ermmm.....

Sorry, that's one you can't have. Teflon was developed by DuPont in the 1940s.

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7 hours ago, JuanFloEvraTheCocu'sNesta said:

You are assuming that life on other planets requires people to live outdoors. It is not impossible to conceive of mankind building self contained structures in which people can live outside of our atmosphere.

Not so long ago in human history people would have said it was comical to believe we would leave earth's atmosphere, let alone land on the moon. People probably thought the Wright brothers were mental back in the day. I could go on...

My point is as a species we learn and solve problems, living outside of Earths atmosphere is a problem we will learn to solve. If we always placed limitations on our ambition as a species by simply giving up because it doesn't sound like it would work or sounds a bit hard then we wouldn't have the quality of life we do now.

Ok......

A reasonable estimate on this planet - which is obviously well suited to our needs - is that it requires 0.25hectares of land to produce enough food for one peron. Thats 2500m2 or say 0.6 acre.  for a small community of 20 people thats 50,000m2 of productive farmland or 12 acres. Big building. 1 acre of farmland requires 27,000 gallons of water per week. Thats 1.4 million gallons of water per year. For the 12 acres to support food production for just 20 people thats......

  • 17 million gallons of water per year on a planet with no surface water (just for food production).

Each person needs 550 litres of pure oxgyen per day. 200,000 litres of oxygen per year. So those 20 people need.....

  • 4 million litres of oxygen per year on a planet with no oxygen.

The food won't grow at temperatures of minus 100 degrees C. Those 12 acres need heating from -100 degrees C to a temperature that the plants can tolerate. Most plants require day temperatures of 70 to 80 degrees F. During the day the temperatures can be boosted by greenhouse effects, but at night heat will be lost by radiation to the night sky. The 12 acres of self contained structures will need heating on a planet which can't even support a naked flame. 

Not that the plants will grow anyway, even after importing 1.5 million gallons of topsoil.

Plants fix nitrogen via bacteria in the roots. But there is no nitrogen. 

It simply isn't sustainable. The astronaut pioneers who go to inhabit another planet will have to survive as stone age hunter gatherers.

Best not to choose a planet with nothing to hunt, nothing to gather, no air, and no water.

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