About 13,000 years ago, a chunk of a comet or asteroid hurtled into the atmosphere at a shallow angle, superheating the atmosphere around it as it careened toward the surface. The air grew hot enough to ignite plant material and melt rock below the object’s flight path. Within a few microseconds, atmospheric oxygen was consumed and the freed carbon atoms condensed into nanodiamond crystals.
An air shock followed several seconds later, lofting these nanodiamonds and other carbon particles into the atmosphere, spreading them around. Mega mammals starved, unable to forage on the scorched earth, and human populations dwindled. The shock on the atmosphere was enough to lower global temperatures for a thousand years.
This is according to a new study of ancient Mexican nanodiamonds, and it’s another salvo in a longstanding ancient-climate dispute. The study bolsters the controversial argument that an asteroid impact might have chilled the planet during the Younger Dryas, an abrupt and very short cold interval that started about 12,900 years back.
Paleo-climatologists have been arguing about the genesis of this period for half a decade now. Some hypothesize it was the result of collapsing North American ice sheets, which disrupted the heat conveyor of the North Atlantic. Others argue it was because melting ice changed the landscape, which in turn changed the jet stream. And another theory, first posed in 2007, holds that something hit the Earth and set North America on fire. This theory was proposed after a study of ancient sediments in multiple sites, in which geologists noticed an organic-rich layer of material called a “black mat.” Later, researchers led by University of Oregon archaeologist Douglas Kennett found high concentrations of nanodiamonds — a material associated with high-temperature collisions of material.The theory soon drew a firestorm of criticism, with a concurrent paper dismissing the nanodiamond results as a false positive. The nanodiamond theory was all but ignored by mid-2011 after many groups of scientists could neither corroborate nor replicate the results. Now comes Isabel Israde-Alcántara et al., writing in the same journal that published the nanodiamond refutation.
This time, the researchers studied a different location — a lake in central Mexico instead of Greenland — and used a different set of techniques to take their measurements. The team studied a 10-centimeter-thick, carbon-rich layer dating to 12,900 years ago, which contained nanodiamonds, carbon spherules and other material. Israde-Alcántara and colleagues at the Universidad Michoacana de San Nicólas de Hidalgo in Mexico and the U.S. Geological Survey report their results in the Proceedings of the National Academy of Sciences.
The sediment layer came from a a 27-meter-long core sample drilled from Lake Cuitzeo as part of a paleoclimate study. The team focused on several microparticles they attribute to widespread burning — such as carbon particulates — and nanodiamonds, which they measured using even more precise techniques than Kennett et al. two years ago.
These particles can’t be explained by any terrestrial mechanisms, the authors say. They rule out a rain shower of cosmic particles; wildfires; volcanism; human-related activities; and even particle misidentification (like finding fool’s nanodiamonds). They say a cosmic impact is the only viable hypothesis.
This is surely not the last word on this subject, however. We will stay on top of the nanodiamond hunt.
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This kind of thing probably happened hundreds of times over the last 500 million years and changed the landscape each time. Probably some were much larger meteors that really really heated things up and scorched much of the earth in a single flash pass.
Why is it everytime someone propositions a meteor doing some damages that some groups try to negate it every single time almost as if they are trying to negate that meteors even exist.
Probably self-centered Christians who think they are the center of the universe and nothing else out there exists.
The Ancient Extraterrestrial Aliens\ Annunaki were caring for and observing the humans on Earth. They see this asteroid heading for Earth they told Noah prepare and carry all he could in preparation, animals included.
The Annunaki had their private island cities on Earth too. Atlantis was one of these cities and was flooded and sank when the asteroid hit Earth.
About 10,000 years ago, the oldest culture in the world was created, the Sumerians. The Ancient Extraterrestrial Aliens\ Annunaki helps us humans and mined for gold in the process. Once the Annunaki acquired enough gold, they left us humans with some small knowledge of language, math and the calendars.
They also build land marks of monolith structures we humans could not have build on our own in both knowledge and tools. The structures point to certain places in the heavens, giving us clues of their location in outer space.
As we scientifically observe planets, we can see the shapes and texture of the landscapes of planets. One unnatural feature you will not find anywhere on Earth or the planets is natural straight lines, triangles, and circles. The monolithic structures can be seen from outer space with our satellites and are easy seen as not part of the natural landscape. If the Ancient Extraterrestrial Aliens\ Annunaki wanted to be found and rescued on Earth and they knew someone was looking for them, this is one way to be found. Then if you wish to identify yourself to the distance observer, you reflect your home world Orion or other star locations.
One thing we humans did build a lot of 10,000 years ago and after were long walls and castles to protect ourselves. We built them with bricks we could carve and manage ourselves; they are smaller in size to anything like the great pyramids, monolithic structures. It would have been natural for us humans to build monolithic walls and castles to protect ourselves out necessity, but we did not. We humans are intelligent in the past and we did use all the available resources.
The great pyramids were built not for religion, or safety of humanity. They were built to be seen from extremely far away by a distant observer. The Annunaki had the knowledge to cut the hard stone, move the monolithic stone with their tools. The Annunaki wanted to be found and they for a time need humanity help to build these great structures; the left us an improved DNA, knowledge, culture, language, math and a calendar.
The local Annunaki were rescued and also live and observer us today.
We humans were made in the image of the GODS-plural.
Prior to this asteroid hitting Earth some 12,500 years ago, there were many Annunaki cities on Earth and many intelligent human cultures too. The asteroid was devastating for all.
This extreme past culture of Annunaki\GODS had a war above and around Earth. It is written Zeus sent to the depths his brother Poseidon, and it is written our God as down to earth the most powerful Angel and his followers to Earth as well. Both Poseidon and The Devil carry a trident and have a tail; both appose GOD.
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Science sees no further than what it can sense.
Religion sees beyond the senses.
@Robot
It's time to take your medication
NOM,
Already, thanks!;)
On medication or off, I just do not get your icon.
What is that thing?
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Science sees no further than what it can sense.
Religion sees beyond the senses.
so they think an impact occurred 13000 years ago...id say they are 1000 years off from the other theories. there is a number of theories that say an impact happened in 10thousand bc. one such link is the flood stories, stories of a massive flood that killed everyone abound all over the world.
@Robot
Why did the Annunaki leave earth then?
-Spouting a fountain of nonsense since 1995-
Lord Elliot the...
I can guess an answer to your question. But, I do not know an answer to your question.
First, the Annunaki never 100% left us. They still observe, help and manipulate our lives. The majority left Earth with the recources they aquired and for the fact, Earth is not their home world.
Second, why are they not actively into our lives like they were in the past? The same reasons parents step back and allow they children learn to walk, grow and be independant.
.............................
Science sees no further than what it can sense.
Religion sees beyond the senses.
"Robot", you are kinda far out there in left field with your theory, but I must had watched the same TV show you watched. I do not believe we evolved from monkeys; I believe we are a product of your 'Annunaki' aliens, and I, as same as you, believe that they are still guiding us. They discovered that this planet was a life and mineral giver and they used their DNA and made us because they could not live in this kind of atmosphere long enough to do everything they had to do, but we can since they built us here. Growing a diverse (white, red, black, and yellow skin color) human population, that can function in its atmosphere and different geographic locations, on this planet is as easy as us humans growing bacteria and virus in petri dishes on this planet.
In the last hundred years, our knowledge has increased a 1,000 times. We advanced from riding horses to landing on Mars; writing on clay slabs to writing on computers...that is remarkable and all in a hundred years. Hunter gather tribes does not have the knowledge or technology to do that; especially hunter gather tribes that evolved from monkeys as the monkey tribes claim they had.
The Annunaki (if you are comfortable calling them that) said that they will come back when we have advanced far enough where we can understand them and they will increase our intelligence and abilities another 1,000 times. The Mayan said that the Annunaki will come back during the start of this 26,000 year tilt of the Earth when the planets line up with the center of the Universe and our Sun reflects in blue..."a new god will come and dance with us and a new god will come and walk with us." I do not think the Mayan are lying.
JamesDavis,
I appreciate your point of views and opinions. Just to let you know on a side note, I read a lot too, lol.
And for all others that are quick to say we offer nonsense, our great many of founders of USA, believed in aliens from above too. These concepts are old and not just recent products of TV media. So with that said keep an open mind, read a book they are vitamins for the brain and discover the world. The world is so incredibly amazing!!!!!!
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Science sees no further than what it can sense.
Religion sees beyond the senses.
They evidence for the Annunaki seems less substantial, and mostly overlapping with, the evidence for God. Oh, and I'm sure you have some explanation or something to do with Nephilim. I like the literal interpretation best...
-Spouting a fountain of nonsense since 1995-
Nephilim were created by bad guy alien breeding with humans and later disposed off and removed from earth.
What is less spoken about and if spoken about and not acknowledge is we current humans and all our variations are productions of alien tweaking with our DNA..
We humans were made in the image of the GODS.
If you say the words alien to them, they get offend, picturing little green men or gray men, creators of a sort. Alien just means a being not of this location. It is descriptive.
God and GODS come from above, not of this location.
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Science sees no further than what it can sense.
Religion sees beyond the senses.
This is a fairly balanced article on this topic. The nanodiamonds are only part of the microscopic evidence, overall. The sites with evidence range from Europe to Mexico and the U.S. Southwest, with most sites so far being in the U.S. There is also Iridium, which was the main 'outer space' evidence for the 65-million-years-ago dinosaur killer that Luis Alvarez brought to our attention. Also there are carbon spherules, glass-like carbon, magnetic spherules, and Helium3. The number of papers continues to rise in support of the air burst hypothesis, with the Mexican study being at least the 11th such peer-reviewed paper. Not all sites show all the types of physical evidence, but all do show multiple lines of evidence.
No location has been found yet for the air burst, which some people may argue as evidence that it didn't happen. The dinosaur killer took about 20 years to find a crater. But there will be no crater if it was an air burst. The Tunguska atmospheric explosion of 1908 knocked down trees for thousands of square miles, yet no crater or meteor was found, indicating it was something other than a meteor; the most solid thinking is that it was a comet that exploded in the atmosphere, but that is not yet certain. Air bursts are simply different from meteor impacts, even though both are hyper-velocity events. It is the hyper velocity that makes the nanodiamonds.
One of the main counter theories - the shutting down of the oceanic thermohaline circulation in the Atlantic - has big problems with it. Widely respected oceanographer Dr Carl Wunsch of MIT is quoted as saying, "You can’t turn the Gulf Stream off as long as the wind blows over the North Atlantic and the earth continues to rotate!" He also says about the oceanic 'conveyor' as "a kind of fairy-tale for grownups". Professor Wunsch said that "I'm willing to talk about these things. I believe that there are all kinds of things happening in the oceans, many highly troubling, but I also believe that one should distinguish what the science tells us and what is merely fantasy".
In addition, the hoped for source of an influx of cold fresh water into the North Atlantic was the Laurentide Ice Sheet in southern Canada, which was thought to unleash the ice age Lake Agassiz (Manitoba area) via a burst ice dam, sending vast amounts of icy water down the St Lawrence River to the Atlantic. However, due to the timing of the oncoming ice age (the Younger Dryas stadial) and several other factors, that event has been shown to have not been possible.
The third contending theory continues to lose ground. Clovis Man supposedly killed off every mega mammal in North America (8 million square miles), but Clovis Man has been shown to not be the first humans to America. In addition, it now seems that Solutrean Man came from Europe a full 10,000 years before Clovis Man.
As evidence is accumulating in favor of the impact/air burst, the legs are being cut out from under the contending theories. It is good to see reports about recent scientific developments, so that the public can see the latest evidence of what may have killed off the mammoths and sabre-toothed tigers. The public - me especially - has a great curiosity about that extinction.
I think god, gods and the universe were made in the imagination of humans and wouldn't exist without them.