NASA Scientist Revive 10,000-Year-Old Microorganisms (bbc.com) 110
"Scientists have extracted long-dormant microbes from inside the famous giant crystals of the Naica mountain caves in Mexico -- and revived them," reports the BBC. An anonymous reader writes:
"The organisms were likely to have been encased in the striking shafts of gypsum at least 10,000 years ago, and possibly up to 50,000 years ago," according to the BBC, which calls the strange lifeforms "another demonstration of the ability of life to adapt and cope in the most hostile of environments." With no light, extremophile species must "chemosynthesise," deriving all their energy by extracting minerals from rocks. These ancient microbes "are not very closely related to anything in the known genetic databases," according to the new director of NASA's Astrobiology Institute, who helped conduct the research, and believes that the microbes could help suggest what life might look like on other planets. The BBC adds that many other scientists "suspect that if life does exist elsewhere in the Solar System, it is most likely to be underground, chemosynthesising like the microbes of Naica."
Whythe vaguness about the age? (Score:5, Interesting)
Even though these bacteria are still alive, carbon dating should still work as long as the organism is no longer absorbing carbon from its environment.
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it isn't clear these microorganisms weren't the result of contamination by researchers or the miners who discovered the cave 100 years ago.
Re:Whythe vaguness about the age? (Score:5, Insightful)
Having watched the National Geographic documentary on the expeditions into the caves, the chances of external contamination for the samples looked acceptably low. The samples were taken from an inch or more inside the crystals, from liquid inclusions accessed by drilling with sterilized drill bits and sterile transfer. The sample sites were in deeper areas of the cave to further reduce the risk.
Combine that with the lack of a close genetic match to modern samples, and the level of confidence in the samples been uncontaminated should be satisfactory high. To contaminate the inclusion, you'd have to breach it, contaminate it and the crystal would have to regrow (something it doesn't do when out of water) all deep inside a cave so hot that it can kill in a couple of minutes without protection.
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Re:Whythe vaguness about the age? (Score:4, Interesting)
Carbon dating tells you when the carbon was taken from the atmosphere. It depends on a known ratio of carbon-14 isotopes in the air.
It does not work for underground organisms, where the air may contain CO2 from the rocks.
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"I'd be skeptical of carbon dating. This cave had some sort of exposure to the outside world, so there should be interfering tritium from the 40's and 50's. Not as much as outside, but not zero either."
Cold War tritium is not going to affect carbon uptake by an organism that has not uptaken anything for 10K or more years.
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EDIT: And besides, tritium is hydrogen, not carbon.
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Citation needed.
Do you mean the crazy creationist claims?
Re: Whythe vaguness about the age? (Score:4, Interesting)
Yet you absolutely refuse to even consider anything religious.
That's profound ignorance, or an outright lie. E.g. there are several published experiments regarding the efficacy of prayer (summary: praying doesn't help). At least one of the studies was funded by the alleged pro-religious Templeton Foundation.
There seems to be some confusion in superstitious circles about what "keeping an open mind" actually means. It does not mean "accept anything you're told without evidence," or "accept anything you're told unless you can prove the opposite." It does mean "be open to evaluating new evidence when presented with it."
In other words, present your evidence for your religious claims. If the evidence holds up to scrutiny, the claim will be accepted. To my knowledge, this has yet to happen.
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OK, *which* religion? And which religion will design jet airliners for me?
*EVERY* religion "can't be proven wrong" too. So .... do you have Apollo's phone number? He looks like he could design an F-15 for me.
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I thought you scientist types were supposed to have an open mind? Yet you absolutely refuse to even consider anything religious.
Because religion is made-up bullshit. Being a scientist requires intelligence and the ability evaluate factual evidence. Once most scientists evaluate the "evidence" of religion, they realize that it is a man-made concept.
Yet, we both know you can't prove it wrong, so why be so closed minded?
Nor can you prove it right. Why do you insist in believing in fairy tales?
Re: Whythe vaguness about the age? (Score:5, Insightful)
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Buddy, why pick on science? Law does not accept supernatural explanation as defense. Why don't you religious nuts demand religious explanations to be given equal footing with forensic evidence in court cases?
Because they are brainwashed. Seriously.
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There is no religious scientific theory to consider. Call back, when you got one.
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This Creationist meme is about forty years old now, and was long ago debunked. But nice trolling.
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How the fuck can you revive something that wasn't even dead in the first place? Fucking clickbait summary yet again, making it sound like Jurrasic Park shit when it's just natural bacterial abilities to restore consciousness when conditions are right.
Bacteria are conscious???
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Compared to mactards, yes.
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Good job NASA, now it will grow ad infinitum and kill us all.
Nope, they had their chance ~1000 years ago and failed.
BTW: I get the joke, but this is for those who doesn't.
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BREAKING NEWS - 7 billion versions of the human immune system get to work and find the antibody!
Isn't working so well for MRSA. Or HIV.
Yes, there are AIDS-resistant people. But that doesn't seem to be capable of being generalized into a vaccine/cure.
And MRSA is having a field-day, out-evolving our immune systems and antimicrobial drugs.
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Reviving acient microorganisms... (Score:5, Interesting)
I've seen that film.
It doesn't end well.
Re:Reviving acient microorganisms... (Score:4, Funny)
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So it starts like Andromeda Strain then briefly turns into The Thing then turns into Alien complete with escape at the end with the alien hitching a ride on the escape pod.
And no exposed boobs. Nothing redeeming.
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People are going to be scrambling for privacy after every sheet of drywall on the planet has been consumed by these voracious microbes.
Professor Quatermass was quoted as saying, (Score:3)
Dominant life Forms (Score:3)
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All this talk about exobiology ... (Score:3)
never mentions how that life might have started.
Terrestrial proto-life had Sol and warm seas agitated by tidal motion, but Mars gets 56% less sunlight, and Titan gets just 1% of Earth's solar energy.
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Isn't chemosynthesis much less efficient? That -- to me -- would imply that jump-starting life on Mars or Titan would be significantly more difficult than on Earth.
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Europa - another moon where the possibility of life exists - had a liquid water ocean agitated by radiation from and gravitational interactions with Jupiter. No, we likely wouldn't find plants using photosynthesis, but any life we find there would likely have evolved to make use of radiation/gravitational flux as an energy source instead of solar energy. Just because life evolved one way on Earth doesn't mean that's the only way for life to arise/evolve.
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We know for a fact that Mars had warm seas when life was getting started on Earth. How it could've started on Mars is no mystery. Whether it could've survived to today underground is the mystery.
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How it could've started on Mars is no mystery.
But with 56% less sunlight, the likelihood is much lower.
Re:All this talk about exobiology the noo (Score:3)
56% less than what? If it's the terrestrial average I don't see the point. Scotland gets considerably less than that and there's life there. Not sentient life, but life nonetheless.
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The issue isn't whether or not life exists in Scotland, but whether or not terrestrial biogenesis could have originate in such an environment.
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Actually early on conditions for life were likely more favourable on Mars than on Earth for several hundred million years. In fact there is a very credible hypothesis that life began on Mars and was transferred to Earth later (meteorites with Martian material have been found on Earth).
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Evidence that early conditions for life were likely more favourable on Mars than on Earth and that life began on Mars and was transferred to Earth? ("Martian meteorites found on Earth" hardly reaches that standard.)
Finally! (Score:1)
Why should those dinosaurs have all the fun?!
What could possibly go wrong? (Score:1)
Haven't I Seen This Movie? (Score:2)
Do you want Thing monsters? (Score:2)
Because that's how you get Thing monsters :-P
What exactly is life? (Score:2)
If an atomic/molecular/yet-unguessed-at structure can be held in stasis for 10K-to-50K years, and then (re) animated, what exactly is life?
The two most basic indicators of life are a) replication of itself and b) information gathering via DNA or some other mechanism.
The common result of life is an overall increase in entropy, although it decreases for subsystems.
But what exactly is it? When can we make it in the lab from scratch?
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2nd origin of life means we're surely not alone (Score:1)
Also, does every post need to be related with Donald Trump? Can you take your abusive relationship somewhere else?
No problem (Score:5, Funny)
Reviving a 10,000 year old microorganism? I see nothing that could possibly go wrong with this.
Cool! (Score:2)
House guest (Score:1)
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Re: Lets elect them to be president of the US (Score:2, Insightful)
"How all Trump supporters weren't questioning his leadership qualities then I will never understand."
We were. Just the other option was worse.
Lesser of two evils really sums up US presidential elections.
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"How all Trump supporters weren't questioning his leadership qualities then I will never understand."
We were. But we thought the other option was worse.
We honestly didn't think Trump would actually try to appoint white supremacists, Russian spies and entire board of Goldman Sachs, to key positions. I mean, sure, a bunch of libtards said he'd do that but Trump said he wouldn't and why would we believe that he'd continue doing the same things he's been doing for his entire life when he was promising to Make America Great Again?
Who would have thought he'd eliminate environmental protections, allow pollution by the coal industry, repeal Obamacare without bothering to offer a replacement and try to build an insanely expensive and impractical wall that will do nothing to stop the flow of drugs and illegal immigrants. I mean, yeah, he literally said he was going to do all that and all the libtards told us we should listen, but the whole campaign was about taking him seriously but not literally and who listens to libtards?
And we had no way of knowing that a thin-skinned man who has consistently used SLAPP lawsuits to silence people and drive them into bankruptcy would be a vindictive little shit once he was given power. Nobody could have seen that coming. Well, I mean, yeah, the libtards. Blah blah blah. We're never going to listen to them no matter how many times they're right, so just stop bringing them up okay?
Anyway, Hillary's emails! OMG!! No, Scott Pruitt's emails are fine. Hillary's emails are the problem!
FTFY
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Perfect description of Obama.
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Perfect description of Obama.
Man, I have seen idiocy before, but this takes the cake. The problem with Obama was that he was not vindictive at all - on the contrary, he went much too far in trying to mend fences with the Republicans. After the catastrophe of the Bush administration, what the country needed was a cleansing. The guilty parties (most of the Bush administration, and at least half of the Republicans in Congress) should have been investigated - and many of them should have ended up in jail for lying through their teeth, wast
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That's Obama after 8 years of getting screwed by vindictive Republic-shits who went on record as saying they would obstruct Obama at every turn.
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Trump supporters, almost by definition at this point, have no understanding of truth.
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It's not that most Trump supporters actually liked Trump. There were almost no signs out for him in my conservative neighborhood. But in a contest between a demonstrably evil candidate, and a chaotic one, the nation decided to roll the dice and go with chaos. Because at least an agent of chaos can do good as well as evil.
You act as if Hillary's only flaw was her illegal email server. Ignoring, of course, the reason that she had that illegal server. So that she could (and did) solicit "donations" to her foun
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The fuckwad you replied to is saying he doesn't bother with insurance. This is because when he gets into an accident and breaks some bones, people like you will pay for it. (I don't live in the US anymore.)
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Sure, maybe you are the 1 in 300 million people who will never get sick, you'll never have an accident. But when you do get sick or old, or can't pay your bill because you had a car wreck 6 months ago and can't work, well then the rest of us will pay your bill. Because the hospital won't charge those who can't pay. You'd probably prefer someone die if they can't pay their bill. You might b
Making a Movie about this...kinda (Score:2)
Life [youtu.be]
As you would expect, it doesn't end well.