Liquid water on Mars?

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Discussion

Eric Mc

122,050 posts

266 months

Monday 8th August 2011
quotequote all
rhinochopig said:
Simpo Two said:
And this is a very good demonstration of why men are better than robots. A man can pick it up and go 'Duh'. A robot cannot.
Yeah but the man looking down the camera held by the robot can go Duh, and doesn't require a multi-trillion Yen space programme to get his fragile bag of meat there.
Of course.

But what's the point of finding out these things if someone isn't going to go there eventually.

Robots are great - and are doing great things. But they are merely the advance troops for the humans who will someday follow - and the robots will always have their limits.

rhinochopig

17,932 posts

199 months

Monday 8th August 2011
quotequote all
Eric Mc said:
rhinochopig said:
Simpo Two said:
And this is a very good demonstration of why men are better than robots. A man can pick it up and go 'Duh'. A robot cannot.
Yeah but the man looking down the camera held by the robot can go Duh, and doesn't require a multi-trillion Yen space programme to get his fragile bag of meat there.
Of course.

But what's the point of finding out these things if someone isn't going to go there eventually.

Robots are great - and are doing great things. But they are merely the advance troops for the humans who will someday follow - and the robots will always have their limits.
We may go there eventually, but as you'll know Eric given your profession, in today's climate there needs to be a sound financial reason to go, and for whatever political reasons, sadly for the craic - as in Kennedy's day, is no longer a valid reason.

Given that Scientists and engineers are absolutely terrible at articulating cost benefits of anything remotely complex, then sadly I doubt we'll see a manned mission unless there is a very very compelling reason to do so.

On this topic, you might enjoy this article: http://www.freakonomics.com/2008/01/11/is-space-ex...


Simpo Two

85,495 posts

266 months

Monday 8th August 2011
quotequote all
I agree sending humans is massively more complex, but it depends whether you want to explore properly/colonise.

How much would we know about Africa if all we had was a remote-control toy with a camera on it? Picking stuff up and turning it over and feeling it and making decisions and thinking is very different from looking at an image on a TV. Try cooking your dinner with a video link, joystick and time delay and you'll see the difference


But ultimately you're right - it isn't going to happen.

Edited by Simpo Two on Monday 8th August 16:10

Eric Mc

122,050 posts

266 months

Monday 8th August 2011
quotequote all
rhinochopig said:
Eric Mc said:
rhinochopig said:
Simpo Two said:
And this is a very good demonstration of why men are better than robots. A man can pick it up and go 'Duh'. A robot cannot.
Yeah but the man looking down the camera held by the robot can go Duh, and doesn't require a multi-trillion Yen space programme to get his fragile bag of meat there.
Of course.

But what's the point of finding out these things if someone isn't going to go there eventually.

Robots are great - and are doing great things. But they are merely the advance troops for the humans who will someday follow - and the robots will always have their limits.
We may go there eventually, but as you'll know Eric given your profession, in today's climate there needs to be a sound financial reason to go, and for whatever political reasons, sadly for the craic - as in Kennedy's day, is no longer a valid reason.

Given that Scientists and engineers are absolutely terrible at articulating cost benefits of anything remotely complex, then sadly I doubt we'll see a manned mission unless there is a very very compelling reason to do so.

On this topic, you might enjoy this article: http://www.freakonomics.com/2008/01/11/is-space-ex...

Stuff the accountants I say.

Money can be found when needed.

As Kennedy said, "We CHOSE to go to the moon". Not "We HAVE to go to the moon" or "We FEEL WE NEED to go to the moon".

It's about exercising choice and deciding on priorities.

We spend far LESS on space research in real terms than we did 45 odd years ago - and how many of the ills of the world that people screamed were being neglected due to space expenditure have now been cured?

Where robots go first - people will follow.


rhinochopig

17,932 posts

199 months

Monday 8th August 2011
quotequote all
Eric Mc said:
rhinochopig said:
Eric Mc said:
rhinochopig said:
Simpo Two said:
And this is a very good demonstration of why men are better than robots. A man can pick it up and go 'Duh'. A robot cannot.
Yeah but the man looking down the camera held by the robot can go Duh, and doesn't require a multi-trillion Yen space programme to get his fragile bag of meat there.
Of course.

But what's the point of finding out these things if someone isn't going to go there eventually.

Robots are great - and are doing great things. But they are merely the advance troops for the humans who will someday follow - and the robots will always have their limits.
We may go there eventually, but as you'll know Eric given your profession, in today's climate there needs to be a sound financial reason to go, and for whatever political reasons, sadly for the craic - as in Kennedy's day, is no longer a valid reason.

Given that Scientists and engineers are absolutely terrible at articulating cost benefits of anything remotely complex, then sadly I doubt we'll see a manned mission unless there is a very very compelling reason to do so.

On this topic, you might enjoy this article: http://www.freakonomics.com/2008/01/11/is-space-ex...

Stuff the accountants I say.

Money can be found when needed.

As Kennedy said, "We CHOSE to go to the moon". Not "We HAVE to go to the moon" or "We FEEL WE NEED to go to the moon".

It's about exercising choice and deciding on priorities.

We spend far LESS on space research in real terms than we did 45 odd years ago - and how many of the ills of the world that people screamed were being neglected due to space expenditure have now been cured?

Where robots go first - people will follow.
And ultimately, given the study done after the Apollo missions (which name escapes me at the moment), which found that for every dollar spent the US recouped 8 in S&T developments and patents, I suspect the decision to wind back on NASA's scope will come back to bite the US on their arse (or should that be Ass).

Personally, I doubt I'll see Man set foot on Mars - even a taikonaut - in my lifetime. The only thing that will drive it is a mineral rights style gold rush, or an event that means we have no other option - MMGW or something biggrin

You are right though, the world seems just as poorer a place as it was 45 years ago.

Funkateer

990 posts

176 months

Tuesday 9th August 2011
quotequote all
This article gets the old imagination whirring... Life on Titan?

Who needs water anyway?

Eric Mc

122,050 posts

266 months

Tuesday 9th August 2011
quotequote all
PW said:
Eric Mc said:
But what's the point of finding out these things if someone isn't going to go there eventually.
So recall Juno, scrap the Vesta/Ceres probe, scrub all future Venus missions, slam the brakes on New Horizons and tell Cassini to stop looking at anything other than Titan...

Would we know of this amazing discovery if all efforts since Apollo had gone into getting a man to a remote, "safe" (i.e. dull) piece of Martian desert, rather than an ever growing fleet of orbiters, landers and rovers?

Curiosity is very exciting, and Opportunity is still roaming around, 7 years and counting... Amazing stuff. Also, I never realised until a few weeks ago that Viking 1 lasted 6 years! Incredible.
Manned an unmanned space exploration are not and should not be mutually exclusive. They should go together - one leading to the other.

The Space Shuttle was a misguided project which gobbled up dollars that should have been available for more unmanned missions AND a simpler but more reliable and safer maned sysytem - possibly based on Apollo hardware.

Now that NASA has formally relinquished its historic role in manned spaceflight (maned spaceflight was what the agency was originally set up to do), perhaps people like you have got your wish and you can now sit back and watch the dozens of additional unmanned spaceprobes that will now issue forth from NASA.

If you wonder where the money for more space projects could copme from, have a loomk at the difference between how much NASA spends each year on space and how much the US Department of Defence spends on space.

Eric Mc

122,050 posts

266 months

Tuesday 9th August 2011
quotequote all
PW said:
Eric Mc said:
Now that NASA has formally relinquished its historic role in manned spaceflight (maned spaceflight was what the agency was originally set up to do)
To me NASA has always been about space exploration and science. Why were they wasting money on the Mariner programme if it was only about was manned spaceflight?

Eric Mc said:
perhaps people like you have got your wish and you can now sit back and watch the dozens of additional unmanned spaceprobes that will now issue forth from NASA.
Yes, yes I will. And I'll watch the vast ammounts of new and exciting scientific data, theories and images roll back in. I'll be watching NASA do its job, IMHO.

As you've established - the Shuttle was a waste of resources in many respects, there's no guarantee that any new manned programme would not end up consuming more than their fair share of time and money. "Constellation is 'over budget, behind schedule, and lacking in innovation.'"... unfortunate but not much of a surprise to me.

Eric Mc said:
have a loomk at the difference between how much NASA spends each year on space and how much the US Department of Defence spends on space.
NASA gets us a lot more hi-res photos of liquids on the surface of Mars though...
NASA was set up by President Eisenhower in 1958 with its prime aim of co-ordinating and taking over the various unrelated manned spaceflight projects already in existence.
The unmanned missions came along later as other non-NASA scientific and research centres, such as the Jet Propulsion Laboratory in Pasadena, were transferred into NASA management.

Why do you think I feel NASA was wasting their money on Mariner missions to Mars? Of course they weren't. I am all in favour of unmanned space exploration. But manned space exploration (not low earth orbit Shuttles) is also important and should be pursued parallel with unmanned programmes.

The money is there - if they are minded to fund it.

Eric Mc

122,050 posts

266 months

Tuesday 9th August 2011
quotequote all
Constellation is dead, didn't you know.

US manned spaceflight will resume. I am hopeful that the new way of doing things will result in a practical and more flexible manned spacecraft than the Shuttle.

Simpo Two

85,495 posts

266 months

Tuesday 9th August 2011
quotequote all
My hunch is that mankind as got as far as it is going to get. Every 'empire', whether British, Mongol or Greek or Human Race, spreads to a point where it becomes unsustainable, then contracts.

It is curious to note that the slowing in physical advance has conicided with the advancement of computers.

Eric Mc

122,050 posts

266 months

Tuesday 9th August 2011
quotequote all
Simpo Two said:
My hunch is that mankind as got as far as it is going to get. Every 'empire', whether British, Mongol or Greek or Human Race, spreads to a point where it becomes unsustainable, then contracts.

It is curious to note that the slowing in physical advance has conicided with the advancement of computers.
Development and advancement moves in fits and starts. We had a very energetic burst in the first 2/3 of the 20th century - accelerated by two devastating world wars. Some of that impetous (especially in space and aviation) has slowed somewhat but there is no reason why it won't pick up the pace again at some time in the future.

Use Psychology

11,327 posts

193 months

Tuesday 9th August 2011
quotequote all
the end of the last century saw massive gains in biotechnology - even if we are only just approaching a kind of 'wright brothers' moment in that field now.

you can buy a DNA sequencer now which uses semi-conducting micro-electronics to do the sequencing rather than fluroescent tags as the most established techniques use. Think about the economies of scale that come with semi-conducting technology. (Sequencing is just the start, I know...).

rhinochopig

17,932 posts

199 months

Tuesday 9th August 2011
quotequote all
Simpo Two said:
My hunch is that mankind as got as far as it is going to get. Every 'empire', whether British, Mongol or Greek or Human Race, spreads to a point where it becomes unsustainable, then contracts.

It is curious to note that the slowing in physical advance has conicided with the advancement of computers.
Time then to explore inner space man hippy

Joking apart, I think we will go further (if don't kill ourselves first), but only when current chemical propulsion systems have been replaced by something far more cost effective.

Eric Mc

122,050 posts

266 months

Tuesday 9th August 2011
quotequote all
I agree that we are an a bit of a state of limbo at the moment. We'll just have to see how things pan out. Orion is the best of the new systems being looked at but the Dragon and the Boeing CST-100 both look promising too.

Use Psychology

11,327 posts

193 months

Wednesday 10th August 2011
quotequote all
rhinochopig said:
Time then to explore inner space man hippy

Joking apart, I think we will go further (if don't kill ourselves first), but only when current chemical propulsion systems have been replaced by something far more cost effective.
interesting then that just this week I read that there are large quantities of antihydrogen/antiprotons trapped in the van allen belts around earth. It would not be tooo difficult to design an antimatter collecting and storage system I believe the current record for storing antimatter is around a second... so this is technically feasible. then it's a simple matter of scooting around the van allen belts collecting antimatter until you have enough to power you on your journey through annihilation reactions with 'normal' matter.

Simpo Two

85,495 posts

266 months

Wednesday 10th August 2011
quotequote all
Use Psychology said:
It would not be tooo difficult to design an antimatter collecting and storage system I believe the current record for storing antimatter is around a second... so this is technically feasible. then it's a simple matter of scooting around the van allen belts collecting antimatter until you have enough to power you on your journey through annihilation reactions with 'normal' matter.
But then the greenies will complain that the van Allen belts are being depleted and dangerous solar radiation will reach Earth and kill the polar bears.

Mind you by the time that all happens the polar bears will have evolved into something else.

rhinochopig

17,932 posts

199 months

Wednesday 10th August 2011
quotequote all
Use Psychology said:
rhinochopig said:
Time then to explore inner space man hippy

Joking apart, I think we will go further (if don't kill ourselves first), but only when current chemical propulsion systems have been replaced by something far more cost effective.
interesting then that just this week I read that there are large quantities of antihydrogen/antiprotons trapped in the van allen belts around earth. It would not be tooo difficult to design an antimatter collecting and storage system I believe the current record for storing antimatter is around a second... so this is technically feasible. then it's a simple matter of scooting around the van allen belts collecting antimatter until you have enough to power you on your journey through annihilation reactions with 'normal' matter.
The key problem that needs cracking though is not the getting between the planets bit, it's the getting stuff from the ground into orbit issue. Until we can do this cheaply and more importantly with very high reliability levels, manned space flight to anywhere meaningful is unlikely.

We have the technology now to produce a very capable inter-planetry vehicle, but the problem lies in how you get the thing into space in the first place. Taking it in 10 tonne sections is not very practical.

Use Psychology

11,327 posts

193 months

Wednesday 10th August 2011
quotequote all
the only real answer there then is a space elevator then, which hopefully will be possible soon.

Eric Mc

122,050 posts

266 months

Wednesday 10th August 2011
quotequote all
Use Psychology said:
the only real answer there then is a space elevator then, which hopefully will be possible soon.
20-30 years I bet.

RobDickinson

31,343 posts

255 months

Wednesday 10th August 2011
quotequote all
We still havnt got a material strong enough to build a space elevator. Its probably the best bet for getting lots of mass up into orbit tho.