Climate change messed up Mars

[oleguy]

NASA announced today that Mars used to have an ocean and climate change caused it to disappear. Give me a freaking break. How in the hell would NASA know that? Where is all this politically correct crap going to take us?

[RedLeg505]

Originally Posted by oleguy

NASA announced today that Mars used to have an ocean and climate change caused it to disappear. Give me a freaking break. How in the hell would NASA know that? Where is all this politically correct crap going to take us?

So... there should be PARKING LOTS full of gas guzzling SUV's and factories around that caused the climate change, right?

[i'va biggen]

LMFAO

[Mr MojoRisin]

Originally Posted by oleguy

NASA announced today that Mars used to have an ocean and climate change caused it to disappear. Give me a freaking break. How in the hell would NASA know that? Where is all this politically correct crap going to take us?

I am with you on that. How do we know anything about the climate on Mars, even if it has one. We've never even been there. They say there is water on Mars. Ok maybe there's a liquid, but we don't have a sample to analyze so how can we say its even water. NASA really cracks me up with some of the shit they come up with.


Jim

[gnadfly]

Even though NASA denied it, I think the announcement was a tie in to "The Martian" movie coming out this week.

[LexusLover]

Originally Posted by Mr MojoRisin

How do we know anything about the climate on Mars, even if it has one. We've never even been there. They say there is water on Mars. Ok maybe there's a liquid, but we don't have a sample to analyze so how can we say its even water. NASA really cracks me up with some of the shit they come up with.Jim

.. on the other hand ...



"We" have years of experience at sample taking.

On a more serious note:
"Gamma-ray spectroscopy (GRS) is a well-established technique [e.g., Evans et al., 1993; Boynton et al., 1993] for determining the elemental compositions of planetary bodies. Such measurements can be performed from orbit or on the surface. Previous missions have all used the ambient cosmic-ray flux to produce neutron-induced reactions on elements in the planetary surface which, in turn, produces the characteristic gamma-rays that are used to determine the elemental concentrations. The last spacecraft GRS was built for Mars Observer [Boynton et al., 1992] and was designed to operate from orbit and provide information on the global surface elemental concentrations and their variations over large spatial regions. Extending these measurements to a surface lander is important, because they can provide a direct analysis without having to compensate for atmospheric effects or contributions. Thus, surface measurements can verify and extend the interpretation of orbital measurements and provide a better estimate of the variance that can be assigned to orbital measurements. A surface GRS can also identify specific lithologies and, thus, enable one to evaluate local heterogeneities and perform detailed mapping, perhaps from a rover-based system. In addition, a surface GRS can provide information about diurnal and seasonal variations of constituents, like those that might be produced in a region with permafrost. Typical GRS systems are capable of detecting essentially all major rock-forming elements, as well as volatile components like H, C, O, and S (See Table 8 for a comparison of APX and GRS analyses of a model comet.). It should also be noted that a GRS measurement can be integrated with a penetrator, where such an approach is desired for determining the true intrinsic planetary body composition by analyzing material beneath any disturbed surface, whether it be distillation product on a comet [Evans et al., 1986], a weathering patina on an asteroid, or an evaporitic crust on a terrestrial planet.

The use of neutron-induced gamma-ray production for evaluating elemental content has also been applied to subsurface measurements on the Earth [Schweitzer, 1993; Herron et al., 1993]. While some measurements make use of natural gamma-ray production from K, U, and Th, the most significant multi-element analyses are performed with a pulsed neutron generator (PNG). The use of such a generator for surface planetary measurements is practical, as it is a reasonably compact, rugged device with a power requirement that is well within typical power budgets. Current systems use about 20 W during operation (which would typically be no more than 50% of the time during continuous spectroscopic measurements). Systems have been envisioned whose power requirements during operation would be reduced to 1 to 2 W, though with lower neutron output. The main advantage of such a device is that it produces an ambient neutron flux which is approximately 5 orders of magnitude more intense than that produced by the ambient cosmic-ray flux, a factor that only increases if the planetary body has an atmosphere. This means that if a cosmic-ray flux based measurement would take a month to achieve the desired statistical level, the same GRS detector with a PNG could perform the measurements to the same statistical level in about half a minute. This makes it practical to sample many locations or to monitor temporal variations, such as daily or seasonal variations in volatile components in, for example, a martian permafrost layer. A further advantage of a PNG is that timing of spectral acquisition relative to the neutron production permits a separation of gamma-rays produced by different types of reactions, all of which are combined when the ambient cosmic-ray flux is used as a source. This timing capability significantly increases the signal-to-noise content of the detected spectra, improving the sensitivity for detecting elemental concentrations for the same neutron flux and gamma-ray detector system."
http://www.lpi.usra.edu/publications/psiw/psiw3.html

The technology has improved ... thank God of the hydrocarbon industry.

And when NASA hasn't been teaching Muslim children the value of space exploration .... as the current duffus in the White House ordered his appointee to implement as a goal of NASA ... imaging and "spectroanalysis" have explored Mars ... and other planets.

[Guest040616]

Originally Posted by LexusLover

.. on the other hand ...

Another meaningless cut and paste from LLIdiot, The Master Meaningless Cut & Paster.

While on the ... other hand subject ... when will LLIdiot ... answer the "simple" question?

Or ... will he continue to ... run & hide ...

[i'va biggen]

The flat earth members have spoken........

[LexusLover]

Originally Posted by i'va biggen

The flat earth members have spoken........

BT is a member of the Flat Earth Society?

I know he has a large head from his perspective, but he actually belongs to ..

The Flat Head Society.

[i'va biggen]

Originally Posted by LexusLover

BT is a member of the Flat Earth Society?

I know he has a large head from his perspective, but he actually belongs to ..

The Flat Head Society.

Nice try lexie.

[Mr MojoRisin]

Originally Posted by LexusLover

.. on the other hand ...



"We" have years of experience at sample taking.

On a more serious note:
"Gamma-ray spectroscopy (GRS) is a well-established technique [e.g., Evans et al., 1993; Boynton et al., 1993] for determining the elemental compositions of planetary bodies. Such measurements can be performed from orbit or on the surface. Previous missions have all used the ambient cosmic-ray flux to produce neutron-induced reactions on elements in the planetary surface which, in turn, produces the characteristic gamma-rays that are used to determine the elemental concentrations. The last spacecraft GRS was built for Mars Observer [Boynton et al., 1992] and was designed to operate from orbit and provide information on the global surface elemental concentrations and their variations over large spatial regions. Extending these measurements to a surface lander is important, because they can provide a direct analysis without having to compensate for atmospheric effects or contributions. Thus, surface measurements can verify and extend the interpretation of orbital measurements and provide a better estimate of the variance that can be assigned to orbital measurements. A surface GRS can also identify specific lithologies and, thus, enable one to evaluate local heterogeneities and perform detailed mapping, perhaps from a rover-based system. In addition, a surface GRS can provide information about diurnal and seasonal variations of constituents, like those that might be produced in a region with permafrost. Typical GRS systems are capable of detecting essentially all major rock-forming elements, as well as volatile components like H, C, O, and S (See Table 8 for a comparison of APX and GRS analyses of a model comet.). It should also be noted that a GRS measurement can be integrated with a penetrator, where such an approach is desired for determining the true intrinsic planetary body composition by analyzing material beneath any disturbed surface, whether it be distillation product on a comet [Evans et al., 1986], a weathering patina on an asteroid, or an evaporitic crust on a terrestrial planet.

The use of neutron-induced gamma-ray production for evaluating elemental content has also been applied to subsurface measurements on the Earth [Schweitzer, 1993; Herron et al., 1993]. While some measurements make use of natural gamma-ray production from K, U, and Th, the most significant multi-element analyses are performed with a pulsed neutron generator (PNG). The use of such a generator for surface planetary measurements is practical, as it is a reasonably compact, rugged device with a power requirement that is well within typical power budgets. Current systems use about 20 W during operation (which would typically be no more than 50% of the time during continuous spectroscopic measurements). Systems have been envisioned whose power requirements during operation would be reduced to 1 to 2 W, though with lower neutron output. The main advantage of such a device is that it produces an ambient neutron flux which is approximately 5 orders of magnitude more intense than that produced by the ambient cosmic-ray flux, a factor that only increases if the planetary body has an atmosphere. This means that if a cosmic-ray flux based measurement would take a month to achieve the desired statistical level, the same GRS detector with a PNG could perform the measurements to the same statistical level in about half a minute. This makes it practical to sample many locations or to monitor temporal variations, such as daily or seasonal variations in volatile components in, for example, a martian permafrost layer. A further advantage of a PNG is that timing of spectral acquisition relative to the neutron production permits a separation of gamma-rays produced by different types of reactions, all of which are combined when the ambient cosmic-ray flux is used as a source. This timing capability significantly increases the signal-to-noise content of the detected spectra, improving the sensitivity for detecting elemental concentrations for the same neutron flux and gamma-ray detector system."
http://www.lpi.usra.edu/publications/psiw/psiw3.html

The technology has improved ... thank God of the hydrocarbon industry.

And when NASA hasn't been teaching Muslim children the value of space exploration .... as the current duffus in the White House ordered his appointee to implement as a goal of NASA ... imaging and "spectroanalysis" have explored Mars ... and other planets.

Good, with all that technology they should be able to determine if man can survive on Mars. If he can, they should put some members of congress up there for at least six years.


Jim

[Guest123018-4]

If it were not for our magnetic field surrounding the earth, we would look much like Mars.
Atmosphere is just a small part of our protection from the sun's constant bombardment of radiation worse than that of a nuclear bomb.

We stand a much greater chance of extinction from a burp of the sun than we do to climate change. Well, once the sun burps we will have climate change but we will not be here to see it happen.

Why do we call it sunburn rather than radiation burn?
Why do we call it sun sickness rather than radiation sickness?

[timpage]

Originally Posted by i'va biggen

The flat earth members have spoken........

Yes, the current version of the "Know Nothings" from days of yore....fucking idiots make decisions about scientific matters based on Rush Limbaugh and Breitbart editorials and are apparently unaware that NASA has had a rover cruising around Mars for the last decade. Maroons.

[timpage]

Originally Posted by The2Dogs

If it were not for our magnetic field surrounding the earth, we would look much like Mars.
Atmosphere is just a small part of our protection from the sun's constant bombardment of radiation worse than that of a nuclear bomb.

We stand a much greater chance of extinction from a burp of the sun than we do to climate change. Well, once the sun burps we will have climate change but we will not be here to see it happen.

Why do we call it sunburn rather than radiation burn?
Why do we call it sun sickness rather than radiation sickness?

Well, there you go. A mod on Eccie has spoken definitively and answered all questions relating to global warming and the danger it apparently does not pose to mankind. Add him to the list of reliable opinion providers that oppose that 97% of all climatologists who disagree with him.

[Rey Lengua]

Originally Posted by Mr MojoRisin

Good, with all that technology they should be able to determine if man can survive on Mars. If he can, they should put some members of congress up there for at least six years.


Jim

And make sure that Shiela Jackson-Lee goes in the first batch. Let the "Congressional" #Blacklies Matter Caucus hold their meetings up there. Maybe woomby can go with them and advise them on how to set up a "socialist democracy" utopia !