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“This finding shows that DNA and viruses can survive the rigours of space travel – escape at high speed through the atmosphere of one planet and land in tact on another.
originally posted by: arpgme
a reply to: Quantum_Squirrel
Looks like a strand of DNA
I had read their paper and decided it was more of the same ol’, same ol’ and hadn’t said anything then, but I’m willing to summarize it.
It’s crap.
The data collection is fine. They’re lofting balloons into the stratosphere, and at a designated altitude, are opening a trap that allows dust, debris, small organisms, and so forth to settle and adhere to EM stubs. Then the trap is closed, the balloon descends, and they put the stubs on the electron microscope and see what is floating around in the atmosphere.
So far, so good. The problem lies in the interpretation. They’re then sorting the material observed into known vs. unknown, where “known” is clearly material from earth, and “unknown” is immediately categorized as Possible Signs of Extraterrestrial Life. The logic doesn’t work. It makes no sense. You’re looking at low density airborne particles in the atmosphere of a planet; it’s not as if we’ve come even close to categorizing all the particles of terrestrial origin, so you can’t play this game of assigning subsets to some other source outside our world.
The authors also have a bad case of apophenia. Almost every bit of unrecognizable garbage they spot is called “life”.
originally posted by: MKMoniker
a reply to: Quantum_Squirrel
"Microbes In Spaaaaaace!" (Sounds like something Netflix or SyFy should pick up.)
But seriously, this is a fascinating subject, so thanks for starting this thread.
I've been following this topic on the European Space Agency (ESA) for awhile, which has more studies and results on this topic than we get from NASA and JPL:
www.esa.int...
(2001) WE ARE NOT ALONE IN SPACE; TYING IT ALL UP
1) Detection of organic molecules in space.
2) Finding planets orbiting exo-suns, with the possibility some harbor Life.
3) Finding exo-phile organisms thriving in extremely hostile conditions on Earth, thus Life on "hostile" planets may not be that difficult to find.
www.esa.int... e_Development
(Aug. 2012) ISS PLAYS ROLE IN VACCINE DEVELOPMENT
(Space changes microbes, and this is directly related to Earthly disease and vaccines.)
www.esa.int...
MICROBIOLOGY: STUDYING MICROBES
(Studying how microbes grow in space - E. Coli bacteria can grow in space inside a test tube - and how this relates to keeping the astronauts healthy in the ISS.)
www.esa.int...
VIDEO: CHARLES COCKELL DISCUSSES POTENTIAL BENEFITS OF "BIOMINING" ON OTHER ORBS
www.esa.int...
ESA ARTICLES UNDER MY SEARCH: MICROBES FROM SPACE ARE ALIVE
3) Finding exo-phile organisms thriving in extremely hostile conditions on Earth, thus Life on "hostile" planets may not be that difficult to find.
I’m not the troll, but I think they caught one in their sample
I got a strange email the other day.
Dear Troller
Dear Dr Myers, I note that you are trolling our work Please find attached a copy of our SPIE paper which we gave in San Diego. I would welcome the opportunity to give a talk at you Institution so that you, with all your infinite wisdom, could shoot me down in flames and make a fool of me. However, I doubt that you have the balls ! Professor Milton Wainwright
originally posted by: Quantum_Squirrel
Who is accused of trolling, and after reading the whole blog, he just calls them liars, calling any old crap ..
Everyone is entitled to their opinion , I get it you think they are either lying , or just misguided and too wrapped up in their own Hype, is their any part of you that thinks the theory could have some truth to it? as these guys are actually running something to do with the theory we are discussing , i would like to hear their views without relying on Dr's blogging. i'd like to see all the evidence..
Also the Balloon you posted looks very much like the info-graphic used?!? i think they call it an artists impression but seems pretty close to one of the images you posted.
originally posted by: Quantum_Squirrel
a reply to: Bedlam
I thought they said that they can prove it originated from space due to the speed it hits the sensor rather than stuff buzzing around the stratosphere?
or did i get this wrong?
why couldn't life originating from elsewhere be based on exactly the same structures as here on Earth? for me it does not have to be different, you just have to prove it originated from outer space.
Q
However, astrobiologist Dirk Schulze-Makuch of Washington State University thinks the study team should have performed such follow-up analyses, and consulted diatom experts, before publishing its provocative claim.
"Perhaps the fragment came actually from the stratosphere and is not contamination, but basing this conclusion only on one particle and very limited analysis seems quite odd to me and inferring an extraterrestrial origin completely off-base," Schulze-Makuch told SPACE.com via email.
Schulze-Makuch also thinks comets are unlikely incubators for life, suspecting that life first arose on a planetary body. And the presence of a diatom on a comet would be especially surprising, he said.
"Diatoms are actually relatively advanced life forms on Earth and developed most likely sometime at the beginning of the Mesozoic (probably Jurassic time period), thus very late during evolution (probably at least 3 billion years after the origin of life on Earth)," Schulze-Makuch said, adding that diatoms are typically aquatic and there is no liquid water on a comet, except during the brief periods when the icy objects approach the sun.
It is estimated that hundreds of millions of pieces of space trash are now floating through our region of the solar system. Some of them are as large as trucks while others are smaller than a flake of paint.
originally posted by: Bedlam
Why should it be the same? It's not even the same HERE. Evolution tries a lot of different approaches to things.There's no reason to expect that extra-terrestrial life would be anything LIKE what you have here on any level. Also, it's sort of mind-boggling to expect a friggin' diatom to be space life. It's the end of a longish chain of evolution you can document here. And they're all over the place here. And if I find a diatom from Earth on a sampler, MY first reaction would be to look for other contamination. Not to assume it's an alien life form.
originally posted by: peter vlar
The reason it would be the same is that the fundamental building blocks and the requirements for such do not change.