• Mars once had fresh water on surface.
    35 replies, posted
[QUOTE]The surface of Mars once flowed with water fresh enough to sustain life, according to data collected by two of NASA's Martian rovers. The findings, published in the journal Science, suggest freshwater rivers and streams once existed in the Meridiani Plains region near the Martian equator, 3.8 billion years ago. But all that changed when a huge asteroid impact turned the fresh water into a highly acidic soup. "All the evidence we have indicates the local Martian water was like spring water that you could drink," Source: [URL]http://www.abc.net.au/science/articles/2014/01/24/3931046.htm[/URL][/QUOTE] [QUOTE]Abstract: [B]Opportunity [/B]has investigated in detail rocks on the rim of the Noachian age Endeavour crater, where orbital spectral reflectance signatures indicate the presence of Fe+3-rich smectites. The signatures are associated with fine-grained, layered rocks containing spherules of diagenetic or impact origin. The layered rocks are overlain by breccias, and both units are cut by calcium sulfate veins precipitated from fluids that circulated after the Endeavour impact. Compositional data for fractures in the layered rocks suggest formation of Al-rich smectites by aqueous leaching. Evidence is thus preserved for water-rock interactions before and after the impact, with aqueous environments of slightly acidic to circum-neutral pH that would have been more favorable for prebiotic chemistry and microorganisms than those recorded by younger sulfate-rich rocks at Meridiani Planum. Journal Source: [URL]http://www.sciencemag.org/content/343/6169/1248097[/URL][/QUOTE] That twin rover is amazing.. it's not only still kicking, but changing our understanding of the planet.
I swear I keep hearing this same kind of article every few months "water was on mars" does/did it have water or fucking not? It's as if they keep changing their minds.
[QUOTE=JaffaCakez;43648062]I swear I keep hearing this same kind of article every few months "water was on mars" does/did it have water or fucking not?[/QUOTE] Having water, and having fresh water are two completely different things. It tells you about the state of the atmosphere if the water is fresh, and can then lead to the investigation of what happened in order for it to acidify/evaporate. Also, water on the surface is different to subterranean water.
Its weird, and kinda sad to think there might have been a civilization like ours on Mars.
Water is really interesting but what I really want to know is it's past (if any) life forms. If it did contain a lot of animal life (not just bacteria) I'm sure there would have been remnants of them. If our planet got raped by an asteroid or whatnot there would still be out shit all over the planet or at least noticeable parts of it
These water on Mars news keeps me thinking that we used to live on Mars and we came here or something, or like we're just going through planet after planet.
[QUOTE=Oizen;43648095]Its weird, and kinda sad to think there might have been a civilization like ours on Mars.[/QUOTE] I've watched enough episodes of Doctor Who to know they'd probably be assholes who would at first appear friendly with an evil secret agenda if they did exist. And the only way we'd be able to defeat them if they're hibernating in stasis is by the ~power of love and understanding~
[QUOTE=Dr.Critic;43648152]I've watched enough episodes of Doctor Who to know they'd probably be assholes who would at first appear friendly with an evil secret agenda if they did exist. And the only way we'd be able to defeat them if they're hibernating in stasis is by the ~power of love and understanding~[/QUOTE] Are you sure you're watching Doctor Who and not a show about ponies?
I like the theory that mars was once exactly like earth, and had humans living on it millions of years ago, but they fucked up the planet and died out leading to what a barren wasteland mars is now, and a trickle of they're DNA managed to escape to earth and begin repopulation once mars had died out.
[QUOTE=Source;43648404]I like the theory that mars was once exactly like earth, and had humans living on it millions of years ago, but they fucked up the planet and died out leading to what a barren wasteland mars is now, and a trickle of they're DNA managed to escape to earth and begin repopulation once mars had died out.[/QUOTE] yeah same pass the blunt
[QUOTE=skynrdfan3;43648469]yeah same pass the blunt[/QUOTE] Hey. [url=http://en.wikipedia.org/wiki/Panspermia]Panspermia.[/url] Kindly disregard actual scientific theories elsewhere, yeah?
[QUOTE=skynrdfan3;43648469]yeah same pass the blunt[/QUOTE] Watch the movie Mission to Mars.
[QUOTE=Worldwaker;43648536]Hey. [url=http://en.wikipedia.org/wiki/Panspermia]Panspermia.[/url] Kindly disregard actual scientific theories elsewhere, yeah?[/QUOTE] Thinking that humans somehow had their DNA in a asteroid and it somehow becoming a singe celled organism that evolved over millions of years to become human again is somewhat of a stretch friend, the possibility of lifeforms traveling in celestial objects however is not.
[QUOTE=some_hobo;43648103]Water is really interesting but what I really want to know is it's past (if any) life forms. If it did contain a lot of animal life (not just bacteria) I'm sure there would have been remnants of them. If our planet got raped by an asteroid or whatnot there would still be out shit all over the planet or at least noticeable parts of it[/QUOTE] Well, one asteroid impact is a lot less destructive than billions of years spent decaying, besides, it takes a bit more than some rovers, as advanced as they are, to find fossils on a foreign planet, even more so when we have no idea what were looking for.
I want Mars to be our Tatooine
[QUOTE=some_hobo;43648103]Water is really interesting but what I really want to know is it's past (if any) life forms. If it did contain a lot of animal life (not just bacteria) I'm sure there would have been remnants of them. If our planet got raped by an asteroid or whatnot there would still be out shit all over the planet or at least noticeable parts of it[/QUOTE] it would be possible that when the water acidified it completely dissolved any remnants of bacteria
[QUOTE=Lone Wolf807;43648732]Thinking that humans somehow had their DNA in a asteroid and it somehow becoming a singe celled organism that evolved over millions of years to become human again is somewhat of a stretch friend, the possibility of lifeforms traveling in celestial objects however is not.[/QUOTE] Do you.. Do you not know how biology works? Humanity is made of a mishmash of other organisms down to the sub-cellular level. And then did you really just try and say that it's unthinkable for that mishmash to have existed somewhere else and then been flung aground by a rogue body, ala, the Moon? When we've already accepted that the [I]majority[/I] of water on Earth was delivered by impacts?
[QUOTE=Worldwaker;43648944]Do you.. Do you not know how biology works? Humanity is made of a mishmash of other organisms down to the sub-cellular level. And then did you really just try and say that it's unthinkable for that mishmash to have existed somewhere else and then been flung aground by a rogue body, ala, the Moon? When we've already accepted that the [I]majority[/I] of water on Earth was delivered by impacts?[/QUOTE] The guy was implying Mars had brought human DNA to Earth, not single celled organisms getting shot off of Mars to Earth. Even if humans could somehow reverse engineer their DNA and send it to a habitable planet or a future habitable planet the organism would probably not evolve the same path or even die off. This can't happen: Human > Single celled organism being flung in space > Human again This can: Single celled organism being flung in space > Human [QUOTE=Deweze;43648863]I want Mars to be our Tatooine[/QUOTE] We only have one sun.
[QUOTE=Worldwaker;43648536]Hey. [url=http://en.wikipedia.org/wiki/Panspermia]Panspermia.[/url] Kindly disregard actual scientific theories elsewhere, yeah?[/QUOTE] Panspermia has nothing to do with the clear lack of any evidence of advanced civilization on Mars, in a near-airless environment that would do a remarkable job of preserving artificial constructs. Unless you're saying ancient Man lived on Mars but all underground so all evidence is hidden and I think it's time to pass the blunt again. Also, the idea of the same single-celled life from asteroids seeding two completely different planets and then both evolving into the same extremely complex organism after millennia is not panspermia, it's a bad sci-fi plot device.
[QUOTE=catbarf;43649147]Panspermia has nothing to do with the clear lack of any evidence of advanced civilization on Mars, in a near-airless environment that would do a remarkable job of preserving artificial constructs. Unless you're saying ancient Man lived on Mars but all underground so all evidence is hidden and I think it's time to pass the blunt again. Also, the idea of the same single-celled life from asteroids seeding two completely different planets and then both evolving into the same extremely complex organism after millennia is not panspermia, it's a bad sci-fi plot device.[/QUOTE] well I doubt there was ever advanced life, but microbes or small life forms in water would be possible with what we're understanding about the planet now. I believe the current theory is that it once had an atmosphere about 3 or 4 billion years ago, but not enough of a magnetic field to project itself from the suns CME's that stripped the planet of its atmosphere after a time. During the time that it possessed one, about 3 billion years or so, there was fresh water and enough warmth for the conditions of life as we know them to occur. Life was at least in some vein possible.
[QUOTE=Dr.Critic;43648152]I've watched enough episodes of Doctor Who to know they'd probably be assholes who would at first appear friendly with an evil secret agenda if they did exist. And the only way we'd be able to defeat them if they're hibernating in stasis is by the ~power of love and understanding~[/QUOTE] Fuck that, just pump metric tons of poison into the atmosphere and wipe their species off of the face of the planet. [img]http://upload.wikimedia.org/wikipedia/en/9/90/V-FinalBattle-2002DVDcover.jpg[/img]
Next they just need to find fossil evidence.
mars was the thirteenth colony :tinfoil:
Maybe Mars was invaded by Demons?
[QUOTE=HumanAbyss;43649184]well I doubt there was ever advanced life, but microbes or small life forms in water would be possible with what we're understanding about the planet now. I believe the current theory is that it once had an atmosphere about 3 or 4 billion years ago, but not enough of a magnetic field to project itself from the suns CME's that stripped the planet of its atmosphere after a time. During the time that it possessed one, about 3 billion years or so, there was fresh water and enough warmth for the conditions of life as we know them to occur. Life was at least in some vein possible.[/QUOTE] Some form of life is definitely possible. This: [quote]mars was once exactly like earth, and had humans living on it millions of years ago, but they fucked up the planet and died out leading to what a barren wasteland mars is now, and a trickle of they're DNA managed to escape to earth and begin repopulation once mars had died out. [/quote] is not. At all.
[QUOTE=mralexs;43649742]Maybe Mars was invaded by Demons?[/QUOTE] Quick, we'd better send some buff dude with sick one-liners to defend Earth.
[QUOTE=Oizen;43648095]Its weird, and kinda sad to think there might have been a civilization like ours on Mars.[/QUOTE] What IF Mankind came from mars, they were aware of their planets dire situation and knew that Earth was the next best choice was to move, but maybe something went wrong and all was lost over time and man had to "Re-Evolve" Technologically
[QUOTE=Bradyns;43650375]Quick, we'd better send some buff dude with sick one-liners to defend Earth.[/QUOTE] Instead he rambles on about guts and innards
[QUOTE=Ridley;43650488]Instead he rambles on about guts and innards[/QUOTE] Always with the ripping and tearing, that guy. Whatever happened to good ol' bludgeoning? Just as effective, but with less mess.
[QUOTE=some_hobo;43648103]Water is really interesting but what I really want to know is it's past (if any) life forms. If it did contain a lot of animal life (not just bacteria) I'm sure there would have been remnants of them. If our planet got raped by an asteroid or whatnot there would still be out shit all over the planet or at least noticeable parts of it[/QUOTE] Well it's been millions of years since Mars was like that and Mars has an atmosphere so anything on the surface will probably have eroded or been buried. Only way to find shit will be to dig deep and that's probably only gonna happen when we put humans there. Unless, ofcourse, one rover gets lucky and finds something close to the surface. [QUOTE=catbarf;43649147]Panspermia has nothing to do with the clear lack of any evidence of advanced civilization on Mars, in a near-airless environment that would do a remarkable job of preserving artificial constructs.[/QUOTE] Wouldn't ocean-sized pools of acid water make the atmosphere also filled with acid gas to the point where everything could have been corroded away by it?
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