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Science Confirms that Mars had an Ocean

The face was an attraction for a Martian beach resort.

While we're joking around, I minus well:

No, it is all that remains of a once great statue of a Martian monarch, which once read in Martian something to the effect of "look upon my mightiest of works, and despair!", until all but the head had been eroded way.
 
The face was an attraction for a Martian beach resort.

While we're joking around, I minus well:

No, it is all that remains of a once great statue of a Martian monarch, which once read in Martian something to the effect of "look upon my mightiest of works, and despair!", until all but the head had been eroded way.

hmmm...thought it was for a Resort Attraction. Erich von Däniken wrote in an unpublished manuscript that only I have access to, and described an attraction called "PrimateWord". It was based on reports on life as it was on Earth then, brought back to the Martians from other species, as they stopped at the various Spaceports located all over Mars to refuel and recharge. In fact, our "7-11", "Stop and Go" and "AM/PM" quickmarts in the US are secretly named after the 'Ports on Mars, in case those species ever come back.

You do not really think Human advertising people came up with products named "Egg Hamlet" or "Slushie" or "Big Gulp", do you?

And, as everyone knows, Martians had three appendages. The Beach Resort, known in Ancient Martian as "The Beach Resort", was the origin of the Swimming Dive known as...

...wait for it...

"The Triple Gainer"
 
So, my question is, is it really wise to send humans to Mars when they could potentially contaminate the environment?
Contaminate it with what? An invasive bacterial species that would be totally devastating to Mars' unique and thriving ecosystem?:vulcan:

If there is a chance we could discover life that once existed on Mars, wouldn't it be better to continue to explore the planet with only robots?
Unless you're concerned about awakening the hidden Monsters of the Id, probably not.

Previously, scientists suspected that Mars once had flowing water. But, they didn't know how much or for how long. Science now confirms that Mars had an ocean that covered 20% of its surface for billions of years. So, my question is, is it really wise to send humans to Mars when they could potentially contaminate the environment? If there is a chance we could discover life that once existed on Mars, wouldn't it be better to continue to explore the planet with only robots?

http://www.space.com/28742-ancient-...=10152675373651466&adbpl=fb&adbpr=17610706465

How is sending humans to Mars any different than humans being on Earth and contaminating this planet?

My statement had nothing to do with the environment on Mars. It has to do with the outside chance that we could discover there was once some kind of life on Mars. If humans bring bacteria and microbes with them there, it can cast a doubt on what we might find there one day.
Any sort of finding ambiguous enough that it could possibly be terrestrial in origin is not worth loosing sleep over. Scientists may find it very exciting to discover fossilized microbial life in an ancient Martian desert, but the entire rest of the human race won't even find it in them to yawn with boredom.

LIVING bacterial would be another thing altogether, more relevant scientifically if not publicly. But really, what all of us are secretly hoping to see is some kind of fossilized animal life form, or, better yet, some kind of hearty sub-terranean critters living off the ground water. In THAT case, contamination might actually become a problem; it's the sort of problem scifi nerds like us have been dreaming about since we were kids.:bolian:
 
Any sort of finding ambiguous enough that it could possibly be terrestrial in origin is not worth loosing sleep over. Scientists may find it very exciting to discover fossilized microbial life in an ancient Martian desert, but the entire rest of the human race won't even find it in them to yawn with boredom.

I don't know that I agree with you. I am not a scientist, but I would find it pretty exiting if we were able to find fossilized microbial life on Mars. It would be the fist time we discovered that any kind of life evolved independently on another celestial body.
 
The last few days I've seen reports that water has been discovered underneath one of Saturn's moons and one of Jupiter's moons. Did we invest in some kind of magic water-finding telescope recently? I'm loving the idea of all these underground oceans everywhere.

It's a big week for water in our solar system.
 
Any sort of finding ambiguous enough that it could possibly be terrestrial in origin is not worth loosing sleep over. Scientists may find it very exciting to discover fossilized microbial life in an ancient Martian desert, but the entire rest of the human race won't even find it in them to yawn with boredom.

I don't know that I agree with you. I am not a scientist, but I would find it pretty exiting if we were able to find fossilized microbial life on Mars. It would be the fist time we discovered that any kind of life evolved independently on another celestial body.

"Exiting"? You'd be so disgusted you'd get up and leave?

Finding microbes on Mars would not prove that they originated there. With over 100 meteorites on Earth believed to be from Mars, odds are the bodies of the Solar system have traded a lot more than small rocks. On top of which, we are not certain about the origin of life on Earth. The "primordial soup" story is delivered as though it were fact, but it is just an educated guess.

And of course, microbe fossils are likely to be ambiguous enough to make the discovery noteworthy, but not ground-shaking.
 
If the water evaporated wouldnt NASA be able to detect it in orbit around Mars possibly even large amounts being detected on the asteroids orbiting Mars? Otherwise the water drained into underground caverns.
 
That is the issue I'm a little confused by. How did the water "leave Mars?" The article seems to indicate that Mars lost its atmosphere and gravity, so stuff floated away. How exactly does something like that happen? Perhaps I'm misunderstanding something.
 
That is the issue I'm a little confused by. How did the water "leave Mars?" The article seems to indicate that Mars lost its atmosphere and gravity, so stuff floated away. How exactly does something like that happen? Perhaps I'm misunderstanding something.

It doesn't exactly have a very strong gravitational pull, so the atmosphere probably slowly evaporated over time.
 
That is the issue I'm a little confused by. How did the water "leave Mars?" The article seems to indicate that Mars lost its atmosphere and gravity, so stuff floated away. How exactly does something like that happen? Perhaps I'm misunderstanding something.

It doesn't exactly have a very strong gravitational pull, so the atmosphere probably slowly evaporated over time.

Water is broken into hydrogen and oxygen by solar and cosmic radiation, and the hydrogen escapes into space because it is extremely light. By measuring the ratio of deuterium (hydrogen with an extra neutron) to regular hydrogen, the amount that has escaped to space can be estimated. That's how this study estimated the amount of water formerly present on Mars.
 
This is hardly a confirmation that Mars had a vast ocean. Many bodies in the Solar system have a hemispherical asymmetry—including the Moon, and the Moon didn't have a huge ocean filling the lower elevations.

From the article:
Although the Martian surface is now cold and dry, there is plenty of evidence suggesting that rivers, lakes and seas covered the Red Planet billions of years ago.

Would that evidence include alleged river channels that run both uphill as well as down, and have no exit basins?

From the article:
By studying the current ratio of deuterium to hydrogen in Martian water, researchers suggested they could estimate how much total water the Red Planet used to have.

Suppose Mars had a high level of deuterium for some other reason? It is only assumption that Mars must have had water in the same ratios as Earth.
 
This is hardly a confirmation that Mars had a vast ocean. Many bodies in the Solar system have a hemispherical asymmetry—including the Moon, and the Moon didn't have a huge ocean filling the lower elevations.

From the article:
Although the Martian surface is now cold and dry, there is plenty of evidence suggesting that rivers, lakes and seas covered the Red Planet billions of years ago.
Would that evidence include alleged river channels that run both uphill as well as down, and have no exit basins?

From the article:
By studying the current ratio of deuterium to hydrogen in Martian water, researchers suggested they could estimate how much total water the Red Planet used to have.
Suppose Mars had a high level of deuterium for some other reason? It is only assumption that Mars must have had water in the same ratios as Earth.

The study didn't compare the current D/H ratio on Mars to that on Earth. They estimated the actual D/H ratio of ancient Mars using the D/H ratio in 3 billion year old clay minerals in Gale Crater, a 4 billion year old meteorite (ALH84001), and a meteorite that derived from Mars's mantle. The curve of D/H evolution only has four points, granted, but nothing requires assumptions of an Earth-like ratio.
 
You could sail a land skiff because of the high winds. Does NASA have an image yet of where the water was? I'll get you and your little paddy feet. Oh yes I will.
 
High winds, but very low pressure. You're not going to get very far without a *huge* sail.
 
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