Mars
- Thread starter Libby
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Let's go a bit closer then, you are in Alaska (using that because i watched ice road truckers a few weeks back), your water pump blows what do you do?
Mine some aluminium, cast a new pump body and machine it, manufacture a bearing and seal somehow etc etc. Simple problem that is not very easy to fix unless somebody has had the foresight to build a manufacturing plant to make the bit you need.
Ignoring the Tom Hanks incident when he tried going to the moon, generally they will have worked it all out before going anywhere.
We may be at cross purposes here and I'm not even sure I can be arsed to go over it again but here goes... there's a stepped progression. I was talking about colonising the moon, and/or Mars... then moving on to a distant planet or moons like Europa or Titan. You keep flitting between both. They're entirely separate.
I think colonising the moon or mars will take a huge amount of time and logistics to set up and maintain. I think up until this point, what Munse said about humanity still dying out if Earth was destroyed is a fair outcome. However, once a colony is established on the moon/mars, the next stage may not take as long because within that time (which I've agreed will take a fck of a long time) we will discover new processes, means, technology to be able to take that development/capability with us to those distant planets and moons, in ways which we cannot possibly imagine right now because we'll discover those methods in a large part through our trial and error and breakthroughs as we're colonising the Earth's moon/Mars.
[QUOTE="Treble, post: 15204758, member: 1005252"]Ignoring the Tom Hanks incident when he tried going to the moon, generally they will have worked it all out before going anywhere.
We may be at cross purposes here and I'm not even sure I can be arsed to go over it again but here goes... there's a stepped progression. I was talking about colonising the moon, and/or Mars... then moving on to a distant planet or moons like Europa or Titan. You keep flitting between both. They're entirely separate.
I think colonising the moon or mars will take a huge amount of time and logistics to set up and maintain. I think up until this point, what Munse said about humanity still dying out if Earth was destroyed is a fair outcome. However, once a colony is established on the moon/mars, the next stage may not take as long because within that time (which I've agreed will take a fck of a long time) we will discover new processes, means, technology to be able to take that development/capability with us to those distant planets and moons, in ways which we cannot possibly imagine right now because we'll discover those methods in a large part through our trial and error and breakthroughs as we're colonising the Earth's moon/Mars.[/QUOTE]
We may be at cross purposes here and I'm not even sure I can be arsed to go over it again but here goes... there's a stepped progression. I was talking about colonising the moon, and/or Mars... then moving on to a distant planet or moons like Europa or Titan. You keep flitting between both. They're entirely separate.
I think colonising the moon or mars will take a huge amount of time and logistics to set up and maintain. I think up until this point, what Munse said about humanity still dying out if Earth was destroyed is a fair outcome. However, once a colony is established on the moon/mars, the next stage may not take as long because within that time (which I've agreed will take a fck of a long time) we will discover new processes, means, technology to be able to take that development/capability with us to those distant planets and moons, in ways which we cannot possibly imagine right now because we'll discover those methods in a large part through our trial and error and breakthroughs as we're colonising the Earth's moon/Mars.[/QUOTE]
[/QUOTE]Apollo 13 movie
It was in response to Diego's ridiculous analogy.Generally we don't set off across the cosmos like a truck across alaska ffs.
I dont think its possible the distances are just to great .
Mars was apparently quite active up to 50 million years ago before the solar winds finally stripped it bare after volcanic activity ended.
Happy that you got the drift of my thinking.
Treble seemed to get the wrong end of the stick by thinking i said it could never be done when all i was saying is it would take century's to get anywhere (which in fact is what he was pointing out in a different way) because you would have to establish an industrial society on each planet in order to move to the next one.
Apollo 13 movie
It was in response to Diego's ridiculous analogy.Generally we don't set off across the cosmos like a truck across alaska ffs.[/QUOTE]
Ah, that was Jim Lovell. Hanks played him. Hanks wasn't really an astronaut, although he was closer to some of them than their own families! He did write and direct (and star in an episode of) From The Earth To The Moon, which is one of the best series ever on TV, imo.
On re-supplying Mars:
The Aldrin Cycler: A Conveyor Belt To Mars | Answers With Joe - Bing video
Eccentric genius, Aldrin. Even Armstrong - who ended up a professor of engineering and mathematics himself - knew Aldrin was the wild card in the Apollo astronaut crew. History will judge him well.
The Aldrin Cycler: A Conveyor Belt To Mars | Answers With Joe - Bing video
Eccentric genius, Aldrin. Even Armstrong - who ended up a professor of engineering and mathematics himself - knew Aldrin was the wild card in the Apollo astronaut crew. History will judge him well.
Ancient Mars lake had fast-moving floods that carried huge boulders
SPACE 7 October 2021
By Jason Arunn Murugesu
Rock layers in Kodiak butte on Mars in an image taken by the Perseverance rover
NASA/JPL-Caltech/LANL/CNES/CNRS/IRAP/LPG
The ancient lake that once sat in Jezero crater on Mars flooded billions of years ago, transporting large boulders through a river delta and depositing fine-grained clay that could potentially preserve signs of ancient life.
Nicolas Mangold at the University of Nantes in France and his colleagues analysed photographs of a cliff face taken by NASA’s Perseverance rover from February to May 2021.
The researchers identified three parts of a rock formation shown in the images called Kodiak butte, at the opening of the lake. At the top, there are large boulders, the biggest of which is 1.5 metres wide and 1 metre high, that suggest the flow of water into the lake sped up enough at one point that it could carry the rocks over tens of kilometres.
Below the boulders, they found a build-up of sediment that points to a steady and consistent river flow before the boulder-carrying floods hit the crater. We have no idea what caused the floods, Mangold says.
Meanwhile, on the lowest layer the team saw evidence of mudstones, which Mangold says are most capable of storing signs of ancient life.
Read more: NASA’s Perseverance rover has been hit by 100 ‘dust devils’ on Mars
“These images are a rock-solid case for the presence of a sustained lake at Jezero crater,” says Joe Levy at Colgate University in Hamilton, New York. “The features I’m most excited about… are these muddier, finer-grained parts of the delta [which] have never been explored on Mars and have the best chance of preserving organic matter or other clues to whether any organisms could have called the lake home during Mars’ early, warmer, wetter period.”
There is currently no liquid water on Mars because the planet is too cold and the pressure in the atmosphere is too low. But 3.7 billion years ago, water flowed on the surface.
The three rock layers in the images from Perseverance look typical of a shoreline and like those found in basins that used to hold lakes in the Nevada desert, says Mangold.
Water is thought to have filled much of Jezero crater, which has a diameter of 45 kilometres. “We believe the lake was about 35 kilometres wide and about 900 square kilometres in area,” says Mangold.
But there is still a lot we don’t know about the lake. “We know there was a river entering the crater to the west,” says Mangold. “There is no doubt that’s where the water would have come from, but it’s unclear if it came from glacial lakes upstream or was it just rain?”
We also don’t know how old it is or when it dried up, nor whether the water was fresh or salty, which could impact the types of potential life it may have sustained.
Journal reference: Science, DOI: doi/10.1126/science.abl4051
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SPACE 7 October 2021
By Jason Arunn Murugesu
You must log in or register to see images
Rock layers in Kodiak butte on Mars in an image taken by the Perseverance rover
NASA/JPL-Caltech/LANL/CNES/CNRS/IRAP/LPG
The ancient lake that once sat in Jezero crater on Mars flooded billions of years ago, transporting large boulders through a river delta and depositing fine-grained clay that could potentially preserve signs of ancient life.
Nicolas Mangold at the University of Nantes in France and his colleagues analysed photographs of a cliff face taken by NASA’s Perseverance rover from February to May 2021.
The researchers identified three parts of a rock formation shown in the images called Kodiak butte, at the opening of the lake. At the top, there are large boulders, the biggest of which is 1.5 metres wide and 1 metre high, that suggest the flow of water into the lake sped up enough at one point that it could carry the rocks over tens of kilometres.
Below the boulders, they found a build-up of sediment that points to a steady and consistent river flow before the boulder-carrying floods hit the crater. We have no idea what caused the floods, Mangold says.
Meanwhile, on the lowest layer the team saw evidence of mudstones, which Mangold says are most capable of storing signs of ancient life.
Read more: NASA’s Perseverance rover has been hit by 100 ‘dust devils’ on Mars
“These images are a rock-solid case for the presence of a sustained lake at Jezero crater,” says Joe Levy at Colgate University in Hamilton, New York. “The features I’m most excited about… are these muddier, finer-grained parts of the delta [which] have never been explored on Mars and have the best chance of preserving organic matter or other clues to whether any organisms could have called the lake home during Mars’ early, warmer, wetter period.”
There is currently no liquid water on Mars because the planet is too cold and the pressure in the atmosphere is too low. But 3.7 billion years ago, water flowed on the surface.
The three rock layers in the images from Perseverance look typical of a shoreline and like those found in basins that used to hold lakes in the Nevada desert, says Mangold.
Water is thought to have filled much of Jezero crater, which has a diameter of 45 kilometres. “We believe the lake was about 35 kilometres wide and about 900 square kilometres in area,” says Mangold.
But there is still a lot we don’t know about the lake. “We know there was a river entering the crater to the west,” says Mangold. “There is no doubt that’s where the water would have come from, but it’s unclear if it came from glacial lakes upstream or was it just rain?”
We also don’t know how old it is or when it dried up, nor whether the water was fresh or salty, which could impact the types of potential life it may have sustained.
Journal reference: Science, DOI: doi/10.1126/science.abl4051
Sign up to our free Launchpad newsletter for a voyage across the galaxy and beyond, every Friday
I remember watching a documentary years ago which showed during ice age the movement of the ice transported massive rocks over hundreds of kilometres. I wouldn't be surprised if they come up with that as a theory on Mars very soon.
I may even propose it just to get some credit. Maybe even a Nobel prize.
Massive solar flare expected to hit Earth today. Northern lights might be visible as far south as in the North of England.
Not sure what your weather is like oop norf today, but would be worth looking out after sunset to see if anything occurring
Not sure what your weather is like oop norf today, but would be worth looking out after sunset to see if anything occurring
Captain Kirk is back on the Scene so this space travel Warp speed should be no problem now !
Dont know why they didnt just ask him in the 1st place hes been all over the Cosmos
Goodbye, Columbus: Vikings crossed the Atlantic 1,000 years ago
https://www.reuters.com/lifestyle/s...s-crossed-atlantic-1000-years-ago-2021-10-20/
https://www.reuters.com/lifestyle/s...s-crossed-atlantic-1000-years-ago-2021-10-20/
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