Prehistoric Astronomy and the Younger Dryas Catastrophe?

[mkrnhr]

Comet-borne viruses might be only one of the action mechanisms. Major cometary events might also induce energetic/radiative changes, bleedthoughs, new connections with the information field. Those modifications being potentially conducive to the "apparition" of new forms of life.

Some woowoo specultation here, because the latest article delivered a hard punch in the stomach so to speak. The cyclic nature of these reset catastrophes, in terms of years, and given the coupling of human psyche with cosmic event, gives the impression that humanity's fate is sealed and inescapable. No matter what, every 3600 solar years (or/and other longuer cycles) or so, things go down very badly and a cosmic spanking is in order. It is possible however, that maybe from a cosmic point of view, "human time" in terms of information processing and knowledge (including whatever happens physically, emotionally, mentally, and spiritually on the individual and collective levels) flows differently (time is short when nothing happens and long when there is a lot of activity) and that the incarnational process kind of synchronizes human and nature times so to speak.

[thorbiorn]

FWIW, a research geologist,Summer Praetorius(USGS profile) posted the following on Twitter but then subsequently removed the tweet!

I looked at her profile and her work. She received her Ph.D in 2014, so fairly young. Her activity on Twitter is limited, or like now she removes a tweet when she for some reason no longer wishes it to be there. From earlier Tweets I gather she is of the opinion that abrupt climate changes are possible.

图中一个通知你张贴that there were 6 responses to her Tweet and 7 retweets. I tried a couple of ways to move from there, and picked one of her followers hoping that was one of those who had retweeted, but no luck, as there were 97 more, I gave up. Then I tried #YoungerDryas, and voila I found a retweet that was still up:


The link to Cosmic Tusk were the original text in the Tweet is posted is:Praetorious investigating "mysterious" Younger Dryas materials - The Cosmic Tusk

On Cosmic Tusk one also finds links like:

Updated Younger Dryas Impact Hypothesis Bibliography and Paper Archive - The Cosmic Tusk

Tireless Aussie Marc Young has done it again. During his summer holiday Marc has managed to link every YDIH peer-reviewed journal article directly from the bibliography spreadsheet. My idea to have a slick “accordion file” of all the papers at the bottom of the page was simply ahead of its time...

cosmictusk.com

2019 AGU abstract supports Younger Dryas "exacerbated" by cosmic impact - The Cosmic Tusk

Part Three - The Cosmic Tusk

...

cosmictusk.com

While looking into the work of Praetorius I also found an article of peripheral interest:Ancient soil from secret Greenland base suggests Earth could lose a lot of ice

Ancient soil from secret Greenland base suggests Earth could lose a lot of ice
ByPaul VoosenOct. 29, 2019 , 6:00 P

BURLINGTON, VERMONT—In one of the Cold War’s oddest experiments, the United States dug a 300-meter-long military base called Camp Century into the ice of northwest Greenland in the early 1960s, powered it with a nuclear reactor, and set out to test the feasibility of shuttling nuclear missiles beneath the ice. A constant struggle against intruding snow doomed the base, which was abandoned in 1966. But Camp Century has left a lasting, entirely nonmilitary legacy: a 1.3-kilometer-long ice core drilled at the site.
的心脏e, extracted by a team that included glaciologist Chester Langway, yielded a record of past temperatures that helped kick off studies of Earth’s ancient climate. And last week, dozens of scientists met here at the University of Vermont (UVM) to take stock of another gift from the core: mud from Greenland’s ancient land surface, serendipitously discovered in archived samples.New analyses of the mud suggest Greenland’s massive ice sheet was largely absent in a warm period during the past million years when the global climate was much like today’s.[...]

[thorbiorn]

From what I understand it is a 2-way street.

Which reminds me of:

Session 9 January 2005

Session 9th January 2005 Laura, Ark, Mr. Scott, Perceval, Galahad, Andromeda Q: Hello A: My Children Q: Who do we have with us tonight? A: Cassiopaea Q: What happened to Rigel? A: Zoom Out. Q: What does that mean? A: Interference no longer a problem so no relay needed Q: (A) So what...

www.silwale.com

Q: (L) Regarding the recent earthquake and tsunami, there is a huge buzz on the net that this was not a natural phenomenon. Some say it could have been a meteor; others say it was a US nuke; others say it was India and Israel playing around in deep sea trenches. Then there is the speculation on an EM weapon of some description. The New agers are saying it was the start of the final 'Earth Changes". Sowhat really caused this earthquake that happened one year minus one hour after the earthquake in Iran?

A: Pressure in earth. Not any of the proferred suggestions. But remember thatthe human cycle mirrors the cycle of catastrophe and human mass consciousness plays a part.

Q: In what way does mass consciousness play a part?

A: When those with higher centers are blocked from full manifestation of creative energy, that energy must go somewhere. If you cannot create "without" you create "within".

[mrtn]

Just reada german articlebut notthe paperyet

The wide range of evidence supports the hypothesis that a cosmic event occurred at Abu Hureyra ~12,800 years ago, coeval with impacts that deposited high-temperature meltglass, melted microspherules, and/or platinum at other YDB sites on four continents.

[Pierre]

Just reada german articlebut notthe paperyet

The whole paper titled "Evidence of Cosmic Impact at Abu Hureyra, Syria at the Younger Dryas Onset (~12.8 ka): High-temperature melting at >2200 °C" is availablehere.

[Vulcan59]

Dr. Marc Defant now agrees with the Younger Dryas Impact Hypothesis(YDIH). The Cosmic Tusk has anarticle on it.

In an admirable twist, Marc credits his reassessment of the subject to a recommendation from his Rogan debateadversaryGraham Hancock to read a recent book byJames Laurence Powell. It is not surprising that Defant was persuaded by the book. Powell is also a former YDIH skeptic, and“Deadly Voyager” has become the essential readfor the subject. (Unless you care to pick your way through every paper onThe Bib)

Good for Marc, good for the YDIH, and good for science — the system works!

[Persej]

Death from above? Fireball may have destroyed ancient Syrian village

Debris from a comet may have leveled an ancient village in Syriaduring a spate of several such explosions occurring around the world, according to new research.

The village of Abu Hureyra was a mound settlement in northern Syria around 13,000 years ago. The site was quickly excavated in 1972 and 1973, before the Euphrates River was dammed, flooding the site beneath Lake Assad. But the hurried excavations exposed charcoal-rich surfaces containingglass spheres formed from melting soil, melted iron- and sulfur-rich samples, and nanodiamonds. Such materials are all indicators of extremely high temperatures like those produced by a chunk of rock exploding in the air.

A team led by Andrew Moore, an archeologist at the Rochester Institute of Technology in New York who led the emergency excavations of the site in the '70s, recently reexamined some of the excavated material in greater detail. The scientists then developed experimental methods to replicate the materials they discovered at the village.

"These provided new insights into how the meltglass was formed and how plant and other materials became incorporated in it," Moore told Space.com by email.

土壤中的矿物质需要te融化mperatures over 3,630 degrees Fahrenheit (2,000 degrees Celsius), "hot enough to cause the quartz grains to boil," Moore said. That suggests something cataclysmic.

"It is impossible to explain these melted minerals on meltglass by any natural process other than a cosmic impact event," Moore said.

A deadly explosion

The first settlers of Abu Hureyra were hunter-gatherers who lived off the land. A terrible drought drove the people to begin cultivating grains that they had previously collected from the wild, turning them into the first known farmers,previous researchhas revealed.

Then, about 13,000 years ago, something very bad seems to have occurred, leaving a layer of carbon suggesting dramatic fires. But for much of the last decade, scientists inspecting the remnants of the village have debated what happened, unable to decide whether the carbon formed during an airburst or during moremundane firesamong the thatched huts.

So Moore decided to reexamine the glass in more detail. His analysis of the glass composition matched a2012 findingclaiming an airburst had destroyed Abu Hureyra, suggesting that the villagers' bucolic lifestyle ended suddenly when one or morefragments from a passing cometexploded in the air nearby.

"People who were in or near the village of Abu Hureyra at the time the airburst exploded would have seen an immense flash in the sky, equivalent to a nuclear explosion," Moore said. "A few seconds later, they would have been incinerated by the blast emanating from the airburst. The heat wave destroyed the village and everything in it, leaving a layer of burned material across the surface."

Observers several tens of kilometers from the site would have seen the flash, heard the explosion, and felt the heatwave, but likely survived the detonation.

Moore and his colleagues heated fragments of the glass in a laboratory furnace until they had fully melted, which occurred at 2,400 F (1,300 C), establishing a lower limit for the temperature the spheroids had originally been exposed to. But it took higher temperatures for the quartz and other particles on the exterior to melt.

The researchers also compared the Abu Hureyra material with glass melted at other prehistoric impact sites on Earth and found many similarities.The wealth of meltglass dating to roughly the same timeframe suggests to researchers that thousands of pieces of debris shed from a comet slammed into Earth's atmosphere 12,800 years ago, impacting more than 40 sites across North America and Europe.

The new findings by Moore's team match a2007 hypothesisthat Earth experienced several multi-continental airbursts.Since an individual comet or asteroid large enough to cause such widespread destruction is unlikely, the researchers suspect the disparate impacts were possibly caused by cometary debris.

"The largestcometary debris clustersare proposed to be capable of causing thousands of airbursts within a span of minutes across one entire hemisphere of Earth," the authors wrote. "An encounter with such a million-km-wide debris cluster would be thousands of times more probable than a collision with a 100-km-wide comet or a 10-km-wide asteroid."

Death from above? Fireball may have destroyed ancient Syrian village

An ancient airburst apparently destroyed one of the first farming villages.

www.space.com

Cosmic airburst may have caused cataclysmic destruction to Middle East 3,700 years ago

In an instant, those living in the ancient cities and agricultural settlements north of the Dead Sea wereannihilated by a super-heated, cosmic blast from the skies that left destruction across nearly 200 square miles, according to new archaeological evidence.

During last month's annualAmerican Schools of Oriental Researchmeeting,Phillip J. Silviapresented a paper showcasing soil evidence and analysis that suggests a meteor was responsible for the destruction of both the land and all human settlements in the region nearly 3,700 years ago.

According to the paper, the archaeological data collected demonstrates a pattern for ahigh-heat, explosive event.

According to the researchers, a cosmic airburst due to a meteor at low altitude is the only natural force known that could have caused the unique, destructive characteristics found in both the region's soil, melted rock and many of the pottery samples collected at the site.

The event in the Middle East was so powerful that it, "not only [wiped] out 100 percent of the [cities] and towns,"but also stripped the land of fertile agricultural soilsand littered the landscape with super-heated brine from the Dead Sea in the subsequent shockwave, according to thepaper's abstract.

Silvia is the director of scientific analysis at Jordan’sTall el-Hammam Excavation Project.

"The physical evidence from Tall el-Hammam, and neighboring sites, exhibit signs of a highly destructive concussive and thermal event," according to the paper's authors.

"The soil [and] ash samples gathered from Tall el-Hammam contain evidence of top-soil destruction and sub-soil contamination with Dead Sea salts that会使作物的种植吗many centuries following the event."

Settlements did not return to the area for agriculture for nearly 600 to 700 years following the destructive event, the paper reported.
New research suggests that a cosmic airburst wiped out a swath of the Middle East about 3,700 years ago.

In addition to soil evidence, there were other archaeological indicators of a destructive, thermal event including zirconium crystals found within pottery shards that had been turned to glass.

The scientists "found bubbles inside melted zirconium crystals in the glass that indicate boiling of the crystal" at over 4,000 degrees Centigrade, or 7,232 degrees Fahrenheit, according to the paper, adding that the intense heat lasted for only a short time, leaving pottery pieces below unaffected by the heat.

However, no craters have been found near the site, but the chance of a meteor exploding above ground is possible. According to the paper, evidence suggests that the airburst occurred above the ground at around 1 kilometer in altitude.

Incidents like the Siberian Tunguska Event of 1908, the cause of which remains mysterious to this day, also have been attributed to a meteoric airburst. The event in Siberia, which flattened a large area of forest in an explosive, thermal and concussive event, has stirred speculation for an entire century.

"The explosion near the Podkamennaya Tunguska River on June 30, 1908, flattened some 500,000 acres (2,000 square kilometers) of Siberian forest," according toSpace.com.

"Scientists calculated the Tunguska explosion could have been roughly as strong as 10 megatons to 20 megatons of TNT - 1,000 times more powerful than the atom bomb dropped on Hiroshima," Space.com reported.

"Signature markers of an air burst event include high levels of platinum, typically 600 percent above normal background levels, and a high platinum-palladium ratio," Silvia and the research team reported, adding that similar evidence is being found at Tall el-Hammam.

https://www.accuweather.com/en/weather-news/cosmic-airburst-may-have-caused-cataclysmic-destruction-to-middle-east-3700-years-ago/340162

Earth Impact: Are Comets a Bigger Danger Than Asteroids?

Discussions about "death from above" scenarios usually center on asteroids, but a comet impact could be far more devastating than a space rock strike.

Near-Earth asteroids(NEAs) have Earth-like orbits,so their collisions with Earth tend to be glancing blows from behind or from the side. But comets travel around the sun in more random pathsand can thus slam into the planet head-on, with potentially catastrophic results, researchers say.

"It would be a much bigger explosion, a much bigger crater, much more damage," impact expert Mark Boslough, of Sandia National Laboratories in New Mexico, said on June 5. He made the comment during a webcast produced by the online Slooh community observatory, which previewed the June 8 Earth flyby of the asteroid 2014 HQ124. [神奇的彗星的照片2013年天文学家]

In fact,comets can be traveling up to three times faster than NEAs relative to Earth at the time of impact, Boslough added.The energy released by a cosmic collision increases as the square of the incoming object's speed, so a comet could pack nine times more destructive power than anasteroidof the same mass.

The speed ofcometsalso means that a dangerous one could be nearly upon Earth by the time scientists detect it.

"They come in fast," Bill Ailor, principal engineer with the Center for Orbital and Reentry Debris Studies at The Aerospace Corporation, said in March during a presentation with NASA's Future In-Space Operations working group. "In some cases, people have said that we may have two years' or so warning in the best case on something like that."

Two years may sound like a lot, but scientists and engineers would prefer even more lead time to keep Earth out of harm's way.

For example, one of the most promising deflection strategies envisions launching a robotic probe to rendezvous with and fly alongside of the incoming object, nudging it off course via a slight but persistent gravitational tug. This "gravity tractor" method obviously cannot work overnight.

Adding to the intrigue and the danger is the unpredictability of cometary orbits. The icy objects begin spouting gas as they near the sun and heat up; these gas jets act like little thrusters, making it tough to forecast exactly where a comet is going to go.

Despite all of these factors, however, the focus on asteroids as Earth's primary impact threat is not misplaced, Boslough and Ailor said. The reason is simple: numbers.

"I'm more worried about asteroids than I am comets, because there are so many more asteroids," Boslough said. "The likelihood of an impact from an asteroid is probably 100 times the likelihood of an impact from a comet of the same size."

可能有上万亿的彗星,but the vast majority of them reside at the extreme outer edge of the solar system, in a shell of icy bodies known as theOort Cloud.Near-Earth space, meanwhile, is dominated by asteroids. Scientists think millions of NEAs exist, but only about 11,000 have been discovered and tracked so far.

Earth Impact: Are Comets a Bigger Danger Than Asteroids?

Discussions about "death from above" scenarios usually center on asteroids, but a comet impact could be far more devastating than a space rock strike.

www.space.com

[Vulcan59]

New article at Cosmic Tusk -Cycle of Cosmic Catastrophes pinned on fragmenting Taurid comet

In a nutshell, Napier’s study shows how comets are likely to fragment and lose considerable mass during encounters with the inner Solar System. The debris trail can expand to a cross section larger than Earth, increasing the odds of impacts with Earth. Also, the debris has considerable impact energy. But over time, that energy weakens, and the debris trail contracts again.
~Evan Gough, Universe Today, April 13, 2020

[mkrnhr]

Sweatman in his latest blog entry responds to an idiotic article about Gobekli Tepe written by some journalist. We are familiar here with how these people operate but it's nice see it articulated. Here is the blog post:Response to Eric Betz in Discover and Astronomy websites
From the conclusion:

So, it seems to me that Eric favours whatever the archaeologists say simply because they are archaeologists, and not because of the evidence. Well, that’s not how science works. Evidence is key in science, and Eric should know this. In fact, by buying into the site's archaeologists' narrative with such certainty, on the basis of zero evidence, his behaviour smacks of a religious zealot. A follower of the modern cult of orthodox archaeology.

In fact, most if not all of the so-called skeptics and zeteticians are not motivated by knowledge or expansion of knowledge, but by a sort of religious orthodoxy. It is well displayed in this instance.

[Pashalis]

In fact, most if not all of the so-called skeptics and zeteticians are not motivated by knowledge or expansion of knowledge, but by a sort of religious orthodoxy. It is well displayed in this instance.

Indeed! It almost seems like that such people couldn't care less about evidence and truth, despite their fancy titles that are supposed to distinguish them as "scientists". Many of those "scientists" don't seem to be much more than fundamentalistic/religious fanatics while they seem to think of themselves as being the exact opposite of that.