water on mars

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mattaus

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i see scientists have discovered water on mars and apparently this wil make it more practical for a mission to mars... im still wondering when a moon landing will take place?
 
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willpittenger

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Last I checked, various scientests working with MGS data all found evidence of liquid water sometime in the Martian past. However, one person's shorline was someone else's whatever. So who do you believe? Until we have scientests on the ground or can at least dig a trench in one of the questionable spots, can we really say? I doubt it. <div class="Discussion_UserSignature"> <hr style="margin-top:0.5em;margin-bottom:0.5em" />Will Pittenger<hr style="margin-top:0.5em;margin-bottom:0.5em" />Add this user box to your Wikipedia User Page to show your support for the SDC forums: <div style="margin-left:1em">{{User:Will Pittenger/User Boxes/Space.com Account}}</div> </div>
 
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drwayne

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Topics like water on Mars have been discussed at length, I encourage you to do some reading around the forum and see what has been covered before starting new threads.<br /><br />Thanks, and welcome<br /><br />Wayne <div class="Discussion_UserSignature"> <p>"1) Give no quarter; 2) Take no prisoners; 3) Sink everything."  Admiral Jackie Fisher</p> </div>
 
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scottb50

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The existence of water is still very much in doubt. Evidence seems to fit it existed at one time, but other explanation could easily be true. Evidence of water was observed recently, but not confirmed. <div class="Discussion_UserSignature"> </div>
 
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JonClarke

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Examples are:<br /><br />Here<br /><br />Here<br /><br />Here<br /> <div class="Discussion_UserSignature"> <p><em>Whether we become a multi-planet species with unlimited horizons, or are forever confined to Earth will be decided in the twenty-first century amid the vast plains, rugged canyons and lofty mountains of Mars</em>  Arthur Clarke</p> </div>
 
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mattaus

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A return to the moon? I think its pretty obvious no ones been there yet !
 
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mrmorris

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*snif* *sniff*<br /><br />There's a distinctive odor of troll in the air.
 
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brellis

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He's all <i>atwitter</i>, at best. <div class="Discussion_UserSignature"> <p><font size="2" color="#ff0000"><em><strong>I'm a recovering optimist - things could be better.</strong></em></font> </p> </div>
 
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j05h

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<i>> The existence of water is still very much in doubt. Evidence seems to fit it existed at one time, but other explanation could easily be true. Evidence of water was observed recently, but not confirmed.</i><br /><br />Are you kidding? We've known about the water and CO2 ice in the polar caps since Viking. With the recent MRO and Mars Express data, we know that H2O makes up about 30% of the first meter of surface above and below 60' latitude. Mars is a polar desert with a case of rusty dandruff. It is swimming in water. Frozen water for now, but lots of it. <br /><br />This is something that gets repeated for every Mars mission, and so many space cadets continue the trend. We already know there is water on Mars and where it is. Every time you repeat the "We don't know about Mars water" mantra, you do space science a disservice. It's already been discovered. Now, answering complex questions about when/where ancient water affected the planet, that's different. But we've known Mars has an abundance of water for 30 years. <br /><br />Josh <div class="Discussion_UserSignature"> <div align="center"><em>We need a first generation of pioneers.</em><br /></div> </div>
 
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mrmorris

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<font color="yellow">"... But we've known Mars has an abundance of water for 30 years. "</font><br /><br />I'm not disagreeing -- but I think this requires some amplification. Much of the questions about Mars and water revolves around the definition of 'abundance' and exactly how much of an abundance there is... and was.<br /><br />What we <b>know</b> is that there is frozen water at the poles.<br /><br />What we <b>would like to know</b> is:<br /><br />-- If there is frozen water elsewhere on Mars (perhaps in the equivalent of permafrost either shallowly or deeply buried).<br /><br />-- If there is liquid water anywhere today. If so -- where and how much.<br /><br />-- Failing the above, if there *was* liquid water on Mars previously. If so -- when, where, and how much.<br /><br />Scientists have pretty well concluded from MER data that the third at least was the case... i.e. liquid water was around. However, it remains to be determined if there were oceans... or just seas... or just lakes... or just puddles.
 
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telfrow

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<font color="yellow">A return to the moon? I think its pretty obvious no ones been there yet !</font><br /><br />mattaus:<br /><br />If you want to discuss the "moon landing hoax," <img src="/images/icons/rolleyes.gif" /> open a thread in Phenomena, where the topic belongs. Don't do it in M&L.<br /> <div class="Discussion_UserSignature"> <strong><font color="#3366ff">Made weak by time and fate, but strong in will to strive, to seek, to find and not to yeild.</font> - <font color="#3366ff"><em>Tennyson</em></font></strong> </div>
 
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j05h

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<i>> I think he was talking about liquid water -- not frozen.</i><br /><br />No, you and I are talking about liquid water. He just wrote "water", which has become this tired, already-proven thing. Lets just go mine it.<br /><br />Josh <div class="Discussion_UserSignature"> <div align="center"><em>We need a first generation of pioneers.</em><br /></div> </div>
 
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