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Related: Editorials & Other Articles, Issue Forums, Alliance Forums, Region ForumsViking Robots Found Life on Mars in 1976! Scientists release new analysis of Mars probe data.
Viking robots found life on Mars in 1976, scientists sayResearchers put data into sets of numbers, then analyzed the results for complexity
By Irene Klotz
April 12, 2012
New analysis of 36-year-old data, resuscitated from printouts, shows that NASA found life on Mars, an international team of mathematicians and scientists conclude in a paper published this week.
Further, NASA doesn't need a human expedition to Mars to nail down the claim, neuropharmacologist and biologist Joseph Miller, with the University of Southern California's Keck School of Medicine, told Discovery News.
"The ultimate proof is to take a video of a Martian bacteria. They should send a microscope watch the bacteria move," Miller said.
"On the basis of what we've done so far, I'd say I'm 99 percent sure there's life there," he added.
Read the full article at:
http://www.msnbc.msn.com/id/47031923/ns/technology_and_science-science/
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Life Possible On 'Large Regions' of Mars
With higher pressures and warmer temperatures beneath the Martian surface, Earth-like microorganisms could thrive.
December 12, 2011
Australian scientists who modeled conditions on Mars to examine how much of the Red Planet was habitable said that "large regions" could sustain life.
Charley Lineweaver's team, from the Australian National University, compared models of temperature and pressure conditions on Earth with those on Mars to estimate how much of the distant planet was livable for Earth-like organisms.
"What we tried to do, simply, was take almost all of the information we could and put it together and say 'is the big picture consistent with there being life on Mars?'," the astrobiologist told AFP on Monday.
"And the simple answer is yes... There are large regions of Mars that are compatible with terrestrial life."
Read the full article at:
http://news.discovery.com/space/mars-life-habitability-regions-111212.htmlViking
OriginalGeek
(12,132 posts)it's Bowie time
ellie
(6,929 posts)hifiguy
(33,688 posts)dipsydoodle
(42,239 posts)Some don't even need oxygen so nothing would surprise me.
Lydia Leftcoast
(48,217 posts)One of my roommates at the time was a graduate student in cell biology.
She was all excited when news reports came in saying that the probe had found evidence of life on Mars.
But then, within a day or two, the news reports were, "Oh, we spoke too soon. We misinterpreted the chemical data."
So now they're saying that they did find evidence of life after all?
jeff47
(26,549 posts)The data can be analyzed one way to show life, and another to not show life. These articles are more-or-less going back to the initial analysis that got everyone so excited. That doesn't disprove the 2nd analysis.
TheWraith
(24,331 posts)They've "discovered life on Mars" about 50 times or so now. I'm not saying it's impossible or even implausible, hell I'd like it to be true. But the reality is that there is still no hard evidence of it, only extrapolation. And extrapolation isn't evidence.
randome
(34,845 posts)For Christ's sake, send some astronauts to do some proper experiments!
Fumesucker
(45,851 posts)Mars?
Not gonna happen any time soon.
Bruce Wayne
(692 posts)originalpckelly
(24,382 posts)They have to prove that this isn't life from Earth that was brought along with the spacecraft.
I think I remember hearing that's what they thought it was all along.
But introducing actual life from Earth on purpose would fuck it all up. Humans are teaming with bacteria that would fuck up any samples.
Peregrine
(992 posts)Well I think it would be nice to be able to have samples of these microbes that few speak of to investigate. Are they RNA/DNA based or something different. Did Mars meteorites seed the Earth, or did our probes seed Mars?
DCBob
(24,689 posts)Dr. Gilbert Levin. He was an odd ball mad scientist type but I always thought his experiment was correct. I reviewed the data thoroughly and it looked legit to me. I am PhD biologist.
This gives me some pleasure in that he might finally be vindicated after all these years. He was a bit of an asshole at times but he was scientific genius. Many owe this man an apology.
sofa king
(10,857 posts)I think you mentioned him the last time this subject came up, maybe five years ago or so? Pops doesn't remember Levin, but that's probably because my dad was a sub-contractor whose job it was to cram a chemistry lab into a shoe-box.
Dad has always been perfectly confident in the device itself and the results it reported. Long ago now, I remember him saying that thanks to miniaturization, a new LR experiment which would fit in a cigarette box could have been fitted to any of the half-dozen craft which have safely made landfall on Mars since Viking, but, he says, NASA does not wish to repeat the experiment.
Add to that recent papers which suggest that Earth itself has already sent tons of material with life on it to every moon and planet in our own solar system, and even to other stars, and it's beginning to look like the search for life is about to become the search for shadows of our former selves.
DCBob
(24,689 posts)However, the Viking was the first to land on Mars so those bugs, if real, are most likely natives.
I also remember Levin talking about space and weight limitations being the most difficult issue to deal with in designing the LR experiment. That must have been some fun challenges though. I would have loved to have been involved.
sofa king
(10,857 posts)The thing that's blowing my mind this week is that researchers in Japan are now calculating that the asteroid which whacked the dinosaurs 65 my ago launched billions of tons of life-covered pieces of earth at escape velocity, many tons of which have long since escaped solar orbit entirely and are now on their way elsewhere.
Other observers are now suggesting that since this process is hardly unique, the chances that Earth has been visited by similarly ejected life from alien solar systems approaches one.
After the Apollo 12 mission returned a camera from the Surveyor 3 probe and researchers found bacteria in it, space scientists have been worried about contamination of spacecraft and whether our spacecraft have been unwittingly colonizing Mars. But now, it looks like Earth has already rained literally tons of life-bearing material everywhere in the solar system and even beyond.
So now I'm wondering if the "search for extraterrestrial life" just fractured along a fault line between "earth-based extraterrestrial life" and "alien-based extraterrestrial life," and even if my old man is vindicated, the debate may still rage as to whether or not those bugs' origins were in-place on Mars, or from Earth 65 million years ago, or from another major collision on Earth before or after that one.
lovuian
(19,362 posts)and that the government didn't feel it was time for the world to know
that extraterrestrial life could exist on other planets
that the religious community couldn't handle the truth
DCBob
(24,689 posts)As Carl Sagan famously said many years ago.
DavidDvorkin
(19,480 posts)By the time they landed, I had been laid off.
Aah, the aerospace biz!
DCBob
(24,689 posts)Even though you were laid off that must have been a fantastic experience.
DavidDvorkin
(19,480 posts)But I do have a terrible memory.
I worked on the software that calculated the deorbit burn and also on error analysis for the landing. Nothing hardware related.
Being laid off created a serious financial problem for us. Fortunately, I was able to move in to computer programming, and then I was okay. But now I can look back on my part in it all with pleasure. Same thing for the Apollo missions, which I worked on at NASA/Houston before moving to Denver to work on the Viking missions. It was all a long time ago, but those two jobs were the only truly important work I've ever done. All the rest was a matter of getting a paycheck and, for the most part, helping some rich people get richer.
DCBob
(24,689 posts)I have not talked with him for over ten years but it sounds like he is still very active in proving his experiment found life. I think he is right and may finally be getting the credit he deserves.
DavidDvorkin
(19,480 posts)I was at Martin Marietta in Denver, with a brief stint at JPL.
DCBob
(24,689 posts)His lab at the time was in Maryland/DC area.
bananas
(27,509 posts)There have been several re-analysis of the Viking data over the years,
he's kept a webpage on his company website at http://mars.spherix.com/mars.html
He also has a website at http://www.gillevin.com/
And of course there's a wikipedia page for him http://en.wikipedia.org/wiki/Gilbert_Levin
DCBob
(24,689 posts)I have not kept up with him lately. BTW, I was involved in his first website on the LR experiment back in the 90s. I am giving my identity away for those that know about this.
jakeXT
(10,575 posts)"The lack of organics was a big surprise from the Vikings," McKay said. "But for 30 years we were looking at a jigsaw puzzle with a piece missing. Phoenix has provided the missing piece: perchlorate. The perchlorate discovery by Phoenix was one of the most important results from Mars since Viking." Perchlorate, an ion of chlorine and oxygen, becomes a strong oxidant when heated. "It could sit there in the Martian soil with organics around it for billions of years and not break them down, but when you heat the soil to check for organics, the perchlorate destroys them rapidly," McKay said.
http://www.jpl.nasa.gov/news/news.cfm?release=2010-286
hughee99
(16,113 posts)Marrah_G
(28,581 posts)I wanted a story about how Vikings built robots for plundering Mars.........
The Straight Story
(48,121 posts)It does not exist unless we look for it first and since I don't believe it is possible I don't think we should spend a dime wasting time on it....
There, now I feel like other folks who decide what can and cannot exist and won't accept it does until there is proof but won't look for proof and ridicule others who try to.
And not only should it be peer reviewed (which is never ever wrong) it should be subject to a DU jury.
Then, and only then, will I accept it (and hopefully, someone will post the results in H&M).
originalpckelly
(24,382 posts)obscure what actually really is happening here.
Warren DeMontague
(80,708 posts)Yes. Because every assertion is exactly the same- regardless of any logic (or lack thereof) underlying the premise.... life on other planets based upon chemistry similar to that here on Earth, and, say, magic, breakfast cereal-stealing leprechauns. Totally reasonable to conflate the two.
EOTE
(13,409 posts)But I could certainly be wrong about that.
Warren DeMontague
(80,708 posts)Definitely.
Typical NYC Lib
(182 posts)Critics counter that the method has not yet been proven effective for differentiating between biological and non-biological processes on Earth, so it's premature to draw any conclusions.
"Ideally, to use a technique on data from Mars, one would want to show that the technique has been well-calibrated and well-established on Earth. The need to do so is clear; on Mars we have no way to test the method, while on Earth we can," planetary scientist and astrobiologist Christopher McKay, with NASA's Ames Research Center in Moffett Field, Calif., told Discovery News.
originalpckelly
(24,382 posts)could exist without phosphorus.
The best thing if you actually interested in what is really happening to wait until the news frenzy dies down.
But seriously, these dips should send an actual microscope, if it could survive. They'd have to come up with a softer landing than the airbag approach of the recent missions.
Swede
(33,258 posts)ellisonz
(27,711 posts)This is important.
DavidDvorkin
(19,480 posts)Aerows
(39,961 posts)I thought that Vikings were Norwegians and Swedes not Australians.
What the hell is this? It sounds like some sort of "science is stupid" BS, and frankly, this article gives it credence if they can't tell Vikings from Australians, not to mention other dubious points.