A fragment of diatom caught in the upper atmosphere by the sampling ballooon. Image Credit University of Sheffield.
You can see the actual research the news paper reports are based on here. The summary in the conclusion of the paper is a bit less triumphal than the news reports
"To conclude we note that the results presented here provide unequivocal evidence that a diatom fragment has been found in the lower stratosphere."Yes. That's the whole paper basically. "We found a diatom fragment, it's unlikely that diatom fragments can last that long in the high atmosphere, therefore it came from outer space"
" Despite all the images of weird looking blobs in the newspapers they have one, count it, one, fragment of a diatom (a kind of algae with hard shells, they found a bit of the shell). No alien DNA, no other evidence except this one fragment (most of the pictures in the press reports aren't even of the actual diatom fragment, but random dust particles). The authors even admit it looks like a terrestrial diatom fragment.
The authors entire argument rests on it being unlikely that chunks of diatom can last in the stratosphere for a long time.
Cometary dust, almost certain to not contain diatoms.
Except it is not that unlikely. We know that diatoms are ubiquitous in atmospheric dusts, indeed the worlds largest source of atmospheric dust is diatomaceous earth, let alone marine and other surface water droplets. Contamination of forensic and other materials with extraneous diatoms is a perennial problem. So extreme caution is need when interpreting these sorts of results.
Diatomaceous dusts can travel long distances, from the Sahara to Great Britain, and diatom containing droplets can travel far and be wafted high up.
So high that Diatoms are thought to play important roles in forming nucleation centres for rain clouds. While the authors claim there is no known mechanism for getting big dust particles that high, the very ubiquity of diatomaceous dusts, their presence at high altitude in cloud formation, and the ability of cloud air currents to loft material high into the sky make it plausible that diatom fragments could be lofted high but turbulent air currents.
Another mechanism for getting diatoms high in the air is volcanic eruptions. Despite authors claim that there were no volcanic eruptions before the balloon flight, the volcano Bata Tara in Indonesia has been exploding continuously since March, producing huge ash plumes).
Another issue relating to the contamination question is appropriate controls. While the authors had a good control for the ground based contamination of the sample cabinet, they did not do a control flight when there was no meteor shower, so we do not know if they would have picked up any diatom fragements in the absence of meteor dust.
Also, there is the question of WHY an algae that has evolved to live in marine or fresh water environments is on a comet in the first place, a frozen ball that spends most of its time far from the light of the sun is hardly the best place for things that photosynthesise in liquid water. Algae live in some very extreme environments, but spending your life frozen in a vacuum in the dark just doesn't make any sense algae wise.
The authors claims that comets have a "watery environment" is cause for head shaking, Comets are mixtures of ices (water, carbon dioxide, Carbon monoxide amongst others) which is normally frozen at the temperature below that of dry ice (frozen CO2), when the ices heat up during the comets fleeting visit to the Sun they don't go liquid, but sublimate. Hardly the best environment for a marine or river organism.
The Journal of Cosmology has form for publishing articles on life from outer space with very weak evidence. You can see my discussion of a previous paper from a different group claiming bacterial fossils in a meteorite here http://pandasthumb.org/archives/2011/03/life-from-beyon.html
Comets may have bought the building blocks of life to a primitive Earth billions of years ago, but modern diatoms living on current comets? No.
You can see the Bad Astronomers sceptical take here, and Physorgs commentary here.


55 Comments
Kevin B · 20 September 2013
Given that these researchers include Fred Hoyle's collaborator, Chandra Wickramasinghe, it would not be inappropriate to note that this observation could conceivably result from a tornado in a junkyard.
SWT · 20 September 2013
apokryltaros · 20 September 2013
So, to summarize, the authors have a pet hypothesis to explain how a diatom test got onto a weather balloon, i.e., that IT CAME FROM SPACE on a comet.
And in explaining their hypothesis, they eliminate all of the other possibilities of how said diatom could have gotten into the atmosphere by ignoring them, and explain why a diatom would be living on a comet through an inane and verifiably false assertion of liquid water being present on comets.
Hmmmmm...
apokryltaros · 20 September 2013
https://me.yahoo.com/a/JxVN0eQFqtmgoY7wC1cZM44ET_iAanxHQmLgYgX_Zhn8#57cad · 20 September 2013
We found life on earth!
We can spin it, though...
Nazi aliens in space. Will they find Elvis?
Glen Davidson
daoudmbo · 20 September 2013
"On account of the very short residence time of particles of diatom size and
mass at these heights, we argue for its incidence from space, with a probable origin in the watery environment of a comet."
Ok, it's a very tough life for a diatom at 27km above the Earth, so obviously it originates in the extremely easy and carefree luxurious life of diatoms in friggin' space. Sounds convincing to me...
eric · 20 September 2013
Henry J · 20 September 2013
If it's just a fragment, that indicates that the critter didn't do all that well up there.
Mike Elzinga · 20 September 2013
Mark Sturtevant · 20 September 2013
If this gets wider attention, an expert in diatoms will notice and kindly provide an identification.
Mark Sturtevant · 20 September 2013
OK, not a diatom expert here, but it took me 5 minutes to find a similar one. From this small diatom survey, click on plate #10, and look at species #19. Even if this is the wrong species the holes and ridges are very similar.
John Harshman · 20 September 2013
It seems to me the relevant questions are these:
What counts as peer review at the Journal of Cosmology? Is it a real journal?
On the bright side, we can't blame NASA this time.
Henry J · 20 September 2013
Robert Byers · 20 September 2013
Good skepticism here from the author of the thread. YEC says thanks.
By biblical creationist beliefs its impossible for life to exist outside earth.
First because the bible says Gods spirit came upon the earth and gave it the spark called life. No reason to think anywhere else.
then the biiger point that the effects of Adams fall bringing destruction and death to our earth and the universe makes impossible the rest of the universe to have escaped the fall and so being punished is unreasonable. No one out there.
The universe is actually, in christian belief, the original eternity.
We were meant to live forever, as we do in the afterlife, but in this universe. only adam changed that.
so the universe is undeveloped real estate for a eternal mankind eternally reproducing. WE would make one day the one trillion mark in population. So we needed elbowroom.
In fact by this time we shouldn't merely be communicating around the globe with internet but between planets in the nearest galaxies.
paradise lost.
Keelyn · 20 September 2013
I wondered how long it would be before we were graced by one of Byer's word salads.
By the way, Booby, you thoroughly missed the point. No one was implying that life does not exist elsewhere in the Universe. Enough said.
diogeneslamp0 · 20 September 2013
diogeneslamp0 · 20 September 2013
Wickramasinghe.
Still crazy after all these years.
Maybe Chandra got some of his super-intelligent insects to design his balloon. They're smarter than us, he's figured out.
I'd like to shove a 747 up his tornado.
ianfmusgrave · 20 September 2013
ianfmusgrave · 20 September 2013
Rhazes · 21 September 2013
stevaroni · 21 September 2013
Clearly, it is a tiny little fragment of the Roswell UFO.
Rhazes · 21 September 2013
Joe Felsenstein · 21 September 2013
Steve Schaffner · 21 September 2013
"Another issue relating to the contamination question is appropriate controls. While the authors had a good control for the ground based contamination of the sample cabinet..." What good control? They did one control flight and found zero particles of interest. They did one real flight and found one particle of interest. Could someone explain how they achieve statistical significance with those observations?
harold · 21 September 2013
I just have to comment on how insanely naive and ignorant it is to conjecture that life exactly like terrestrial diatoms is falling to earth from outer space.
Panspermia - essentially the idea that very basic biochemical molecules may originate in space and be involved in the origin of self-replicating life if they get to hospitable planets - is a respectable hypothesis. That's a completely different idea. The idea that "fully formed diatoms" come from outer space is truly silly.
It's common for people who are totally ignorant of biology to have a grossly exaggerated idea of how "simple" microorganisms are. Even a virus is complicated. Amoebae are diverse, highly evolved eukaryotes with active behavior, yet it's common for people to think of them as barely more complicated than a simple chemical solution.
That particular self-serving human bias is common, but it shouldn't be common in scientific journals, in any field.
Just Bob · 21 September 2013
KlausH · 21 September 2013
apokryltaros · 21 September 2013
diogeneslamp0 · 21 September 2013
harold · 21 September 2013
Kevin B · 21 September 2013
Joe Felsenstein · 21 September 2013
ksplawn · 21 September 2013
apokryltaros · 21 September 2013
Red Right Hand · 22 September 2013
"If life does continue to arrive from space then we have to completely change our view of biology and evolution. New textbooks will have to be written!"
ROFL
"If those are indeed testicles my aunt is concealing in her underwear, then my family history must be revised, as she is, in reality, my uncle!"
Just Bob · 22 September 2013
trilobitologist · 22 September 2013
Having just registered to join PT, after being put onto this story by a colleague, I had a quick browse of the comments, as you do. I initially thought that the comments by Robert Byers were sarcastic until about the second or third line when the mangled English became ver apparent. Being a palaeontologist, I have a reasonable amount of experience with people of Byers' ilk. This experience leads me to conclude that if geneticists ever find the gene, a mutation in which gives a person the propensity for having nutty religious beliefs, this mutation will also be shown to have a detrimental effect on the gene or genes) for language
diogeneslamp0 · 22 September 2013
eric · 23 September 2013
ogremk5 · 23 September 2013
Just Bob · 23 September 2013
Henry J · 23 September 2013
Apparently the author of Genesis didn't know any modern science, either. ;)
Just Bob · 23 September 2013
diogeneslamp0 · 23 September 2013
eric · 23 September 2013
Mark Sturtevant · 23 September 2013
thomasjneal.nz · 23 September 2013
diogeneslamp0 · 23 September 2013
How us that even cosmology? It's not cosmology. It's xenobiology.
fnxtr · 23 September 2013
TomS · 24 September 2013
Andrew Kelman · 25 September 2013
DS · 25 September 2013
Carl Drews · 27 September 2013
trilobitologist · 30 September 2013
No, I haven't read 'Darwin's doubt'. Life is too short to read this drivel as a matter of course. I sometimes do delve into the nether world of reality denial, but I find it too depressing as it convinces me that the human race is too stupid to survive
John Harshman · 1 October 2013
I found Darwin's Doubt highly instructive. No, not about paleontology or biology. About the crap that IDiots are willing to pull. I recommend it. Be warned that it will probably take a while to read, as you will have to stop every couple of sentences to be appalled.