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Breaking News: NASA- Mars Had Water  
User currently offlineEA CO AS From United States of America, joined Nov 2001, 13766 posts, RR: 61
Posted (10 years 10 months 2 days 1 hour ago) and read 1761 times:
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NASA is confirming that the Opportunity rover has found conclusive evidence that Mars once had water. More info to come.

http://www.msnbc.msn.com/id/4202901/


"In this present crisis, government is not the solution to our problem - government IS the problem." - Ronald Reagan
22 replies: All unread, jump to last
 
User currently offlineCsavel From United States of America, joined Jan 2001, 1376 posts, RR: 4
Reply 1, posted (10 years 10 months 2 days 1 hour ago) and read 1745 times:

This is fascinating! I knew that there was talk and buzz about this, and yesterday the news said that something had mars scientists incredibly excited.

obviously, the likelihood of finding evidence of life is now enhanced, although water in and of itself is no guarantee.

lots of qs

What happened to the water? Probably ice at the poles and also in the soil (like Earth's tundra)

Speaking of life in the atmosphere,
Can't wait until we get more data from Europa, isn't there a probe that is going there? You'd really have to wonder what is swimming under the seas there if there is indeed water (Most scientists think so)




I may be ugly. I may be an American. But don't call me an ugly American.
User currently offlineRacko From Germany, joined Nov 2001, 4857 posts, RR: 20
Reply 2, posted (10 years 10 months 2 days 1 hour ago) and read 1731 times:

Uhm, didn't the ESA report that already 2-3 weeks ago and even published pictures of the valleys caused by the water ?

User currently offlineKlaus From Germany, joined Jul 2001, 21522 posts, RR: 53
Reply 3, posted (10 years 10 months 2 days 1 hour ago) and read 1718 times:

Yes, they did... But the new evidence is still an important step, since it adds chemical evidence to the list.

User currently offlineGDB From United Kingdom, joined May 2001, 13254 posts, RR: 77
Reply 4, posted (10 years 10 months 2 days ago) and read 1704 times:

While Mars Express provided the initial signs, nothing like being on the ground up close and personal;
http://news.bbc.co.uk/2/hi/science/nature/3524275.stm

It seems that Opportunity had the ideal landing site for it's mission.
Though the technology was older, the mission equipment somewhat different, there has always been a suspicion that the two sites of the Viking landers in 1976 were good for this pioneering mission having a successful landing allowing the first pics and in situ look at Mars, but not for finding traces of past water, which photos from Mariner 9 in 1971 had first raised the prospect of after imaging channels that looked to have been carved by water.
Of course Mariner 9 was 35 year old technology compared to Mars Express.


User currently offlineJetService From United States of America, joined Feb 2000, 4798 posts, RR: 11
Reply 5, posted (10 years 10 months 2 days ago) and read 1703 times:

Racko, from what I've read the entire scientific community was pretty certain Mars had water in the past. They needed the chemical evidence before they wanted to officially declare. This is indeed fascinating. It sounds like they still have hopes that water still exist subterranian. If it had water, then the next step is to find a fossil. How cool would that be?


"Shaddap you!"
User currently offlineNoUFO From Germany, joined Apr 2001, 7966 posts, RR: 12
Reply 6, posted (10 years 10 months 1 day 22 hours ago) and read 1654 times:

Hm, I thought ESA's toy (which name escapes me at the moment) "sniffed" water - or what's left of it in the atmosphere, rather than "only" providing pictures of the valleys and hence indeed provided chemical evidence?


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User currently offlineKLM777 From Netherlands, joined Dec 2003, 372 posts, RR: 0
Reply 7, posted (10 years 10 months 1 day 22 hours ago) and read 1644 times:

What I never understood about the whole water outside the earth thing is why water should be the clue to evidence of life.

I mean, why can't there be life without water? On earth you cannot live without water, but what if life at other planets can live without water and live on other sources that planet has.

Maybe it's sheer stupidity from my side, but I keep wondering...

Kind regards,

Jeroen



Every landing is a controlled crash
User currently offlineGo4EVA From , joined Dec 1969, posts, RR:
Reply 8, posted (10 years 10 months 1 day 21 hours ago) and read 1629 times:

NoUFO:

Are you talking about Beagle II? They are still working some technical issues, but it will be great when more evidence of H2O comes in from her.

I mean, why can't there be life without water? On earth you cannot live without water, but what if life at other planets can live without water and live on other sources that planet has.

Not only that, but even if numerous pre-cursor (to life) chemicals are found, we would need to find a mechanism for PRODUCING life on Mars. Chemicals don't just come alive by themselves.

God bless,

- Jeff


User currently offlineNoUFO From Germany, joined Apr 2001, 7966 posts, RR: 12
Reply 9, posted (10 years 10 months 1 day 21 hours ago) and read 1625 times:

Go4EVA,

No, I'm not talking about Beagle II. Beagle II obviously crashed on Mars, but there's a second orbiter cruising around Mars to take pictures and analyze it's atmosphere. As far as I know they found water - and I'm not talking about the valleys the orbiter took photos of.



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User currently offlineGo4EVA From , joined Dec 1969, posts, RR:
Reply 10, posted (10 years 10 months 1 day 21 hours ago) and read 1621 times:

Beagle II obviously crashed on Mars

Negative !

Beagle II has some technical problems, but is still a viable asset.

God bless,

- Jeff


User currently offlineGo4EVA From , joined Dec 1969, posts, RR:
Reply 11, posted (10 years 10 months 1 day 21 hours ago) and read 1621 times:

I hope the Beagle team is successful in recovering the probe and accomplishing the mission objectives as well. I have had the pleasure of working with the European Space Agency on several joint missions, including my current mission LISA (LASER Interferometer Space Antenna), a Goddard-managed, ESA-JPL joint mission. I've also been to ESTEC (ESA Research & Tech Center) in Noordwijk, Holland several times. ESA engineers, in my opinion, are a top-notch group and if Beagle can be recovered, ESA will do it!

User currently offlineNoUFO From Germany, joined Apr 2001, 7966 posts, RR: 12
Reply 12, posted (10 years 10 months 1 day 21 hours ago) and read 1602 times:

Ok, "chrashed" was too strong.

I found this on ESA's website on their expedition to Mars. The orbiter is called Mars Express:

One of the main targets of the Mars Express mission is to discover the presence of water in one of its chemical states. Through the initial mapping of the South polar cap on 18 January, OMEGA, the combined camera and infrared spectrometer, has already revealed the presence of water ice and carbon dioxide ice.
 
This information was confirmed by the PFS, a new high-resolution spectrometer of unprecedented accuracy. The first PFS data also show that the carbon oxide distribution is different in the northern and southern hemispheres of Mars.

(http://www.esa.int/export/SPECIALS/Mars_Express/SEMRVO474OD_0.html)

Don't get me wrong: I wish NASA every success in their endeavors. I'm just a bit confused.



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User currently offlineKlaus From Germany, joined Jul 2001, 21522 posts, RR: 53
Reply 13, posted (10 years 10 months 1 day 21 hours ago) and read 1595 times:

As far as I remember, Mars Express detected water vapour in the remaining atmosphere; But that would not in itself indicate the (former) presence of free flowing water on the surface. The sediment structures found by the orbiting camera and by the rover on the surface seem to be more convincing in that respect.

User currently offlineCsavel From United States of America, joined Jan 2001, 1376 posts, RR: 4
Reply 14, posted (10 years 10 months 1 day 20 hours ago) and read 1582 times:

It's not on ly water, European, American, and Russian probes already found good evidence of water.
And it's pretty much agreed that water is frozen at the poles.

What's exciting is that while there is physical evidence of water, this is the first very strong chemical, as opposed to physical, evidence, almost a smoking gun of liquid water on Mars. Not now but once, and for a long enough time for the chemical processes to occur. From hematite (which is usually an indicator of water, it can form w/o water but it is rare), to the "blueberries" which, if I recall the article, a chemist or a geologist can jump in now, are formed by processes involveing water, to the fact that a lot of the iron is sulfated, and also a fair amount of salts were found, pretty much means that liquid water pretty much had to have been there to form the minerals. THe headline on CNN said Mars was soaking wet. Maybe hyperbole, but that I think is the salient WOW that is this story.




I may be ugly. I may be an American. But don't call me an ugly American.
User currently offlineNoUFO From Germany, joined Apr 2001, 7966 posts, RR: 12
Reply 15, posted (10 years 10 months 1 day 20 hours ago) and read 1567 times:

Oh, ok, I see it. Thanks.


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User currently onlineL-188 From United States of America, joined Jul 1999, 29840 posts, RR: 58
Reply 16, posted (10 years 10 months 1 day 19 hours ago) and read 1555 times:

Guys, this is the scoop.

Explorer discovered a mixture of C02 and H20 ice. The presence of water in ice form was suspected for many years to exist at the Martian poles.

Explorer confirmed those suspicions.

Opportunity, has found sedimentation deposits that on earth are caused by liquid water.




OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.
User currently offlineMD11Engineer From Germany, joined Oct 2003, 14140 posts, RR: 62
Reply 17, posted (10 years 10 months 1 day 11 hours ago) and read 1521 times:

AFAIK, Mars Express carries a special radar which can look up to 5 km beneath the surface of Mars. Liquid water, esp. if it has been disolving salts as ions and is therefore conductive, should give a distinctive signature.

Jan


User currently offlineGDB From United Kingdom, joined May 2001, 13254 posts, RR: 77
Reply 18, posted (10 years 10 months 1 day 9 hours ago) and read 1506 times:

As for Beagle 2, that's all but written off.


User currently offlineJwenting From Netherlands, joined Apr 2001, 10213 posts, RR: 18
Reply 19, posted (10 years 10 months 1 day 1 hour ago) and read 1484 times:

NASA doesn't discount the possibility of life without water, but the problem is recognising it.

We have some idea of what life WITH water looks like, but life without water could be anything at all.



I wish I were flying
User currently offlineZak From Greenland, joined Sep 2003, 1993 posts, RR: 8
Reply 20, posted (10 years 9 months 4 weeks 1 day 2 hours ago) and read 1426 times:




10=2
User currently offlineLehpron From United States of America, joined Jul 2001, 7028 posts, RR: 21
Reply 21, posted (10 years 9 months 4 weeks 1 day 1 hour ago) and read 1411 times:

I did not know they still sell mars bars, what about "whacamacalit" bars?


The meaning of life is curiosity; we were put on this planet to explore opportunities.
User currently offlineGo4EVA From , joined Dec 1969, posts, RR:
Reply 22, posted (10 years 9 months 4 weeks 1 day 1 hour ago) and read 1409 times:

Zak-y was a chemist, but he isn't anymore,
for what he thought was H2O
was H2SO4.




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