What Came Before the Big Bang?

Cosmologist Alexander Vilenkin has convincing evidence that we are surrounded by expanding, bubble-like universes. | Roen Kelly (Illustration); Mark Ostow (Photo)

What Came Before the Big Bang?

by Steve Nadis|Thursday, October 10, 2013

From the September 2013 Issue

Cosmologist Alexander Vilenkin believes the Big Bang wasn't a one-off event, but merely one of a series of big bangs creating an endless number of bubble universes.

It is cosmology’s most fundamental question: How did the universe begin?

The question presupposes that the universe had an actual starting point, but one might just as well assume the universe always was and always will be. In that case, there would be no beginning whatsoever — just an ever-evolving story of which we’re catching a mere glimpse.

“We have very good evidence that there was a Big Bang, so the universe as we know it almost certainly started some 14 billion years ago. But was that the absolute beginning, or was there something before it?” asks Alexander Vilenkin, a cosmologist at Tufts University near Boston. It seems like the kind of question that can never be truly answered because every time someone proposes a solution, someone else can keep asking the annoying question: What happened before that?

But now Vilenkin says he has convincing evidence in hand: The universe had a distinct beginning — though he can’t pinpoint the time. After 35 years of looking backward, he says, he’s found that before our universe there was nothing, nothing at all, not even time itself.

Throughout his career, including the 20-plus years he has directed the Tufts Institute of Cosmology, Vilenkin has issued a series of wild, dazzling ideas, though from the outside he looks neither wild nor dazzling. The 64-year-old professor is soft-spoken, trim and of modest build. He dresses neatly, in neutral, understated tones that don’t draw attention to him.

Despite a low-key manner bordering on subdued, Vilenkin is a creative force who has continually found ways of piercing the fog surrounding some of the densest quandaries imaginable — triumphs that have earned him the respect of scholars worldwide. “Alex is a very original and deep thinker who has made important and profound contributions to our notions about the creation of the universe,” says Stanford cosmologist Andrei Linde.

Yet this brilliant career might never have happened. Born in the Soviet Union in 1949 and raised in the Ukrainian city of Kharkiv, Vilenkin got hooked on cosmology in high school, after reading about the Big Bang in a book by Sir Arthur Eddington. That “obsession” over the universe’s origins, Vilenkin says, “has never left me. I felt that if you could work on this question, which may be the most intriguing one of all, why would you choose to work on anything else?”

As an undergraduate at Kharkiv National University, Vilenkin says he was advised to “do some real physics” rather than pursue his first love, cosmology. Although he was an excellent student, he could not get into any graduate programs in physics because, he suspects, the KGB blacklisted him for refusing to become a government informant. Instead, Vilenkin was forced to take a series of mundane jobs. For a while he taught night school for adults but left that position because his responsibilities included going to the homes of absentees, many of whom were alcoholics, to try and drag them to school — an unenviable task. 

He was a night watchman for about a year and a half, including a stint at the Kharkiv Zoo. To protect the animals (which were sometimes hunted for food), he was given a rifle that he didn’t know how to use and fortunately never had to fire. When he had time during those long nights, Vilenkin studied physics, an avocation that included reading the four-volume collected works of Albert Einstein. He got fired from this plum assignment when someone decided — perhaps based on his choice of reading material — that he was overqualified for the task at hand. 

With his employment prospects looking bleak, he decided to emigrate to the United States; he figured he’d start out washing dishes while trying to break into academia. But getting out of the Soviet Union required an elaborate plan: Jews like him were allowed to go to Israel in small numbers, determined by a quota, but one had to secure an invitation from Israeli relatives first. Vilenkin had no actual relatives there, so he contacted a friend who knew people in Israel and eventually found someone — a stranger to him — kind enough to write a letter on his behalf. 

After the letter arrived, he waited a year for a visa, but it came at great cost. Before Vilenkin and his wife could leave, their parents had to consent to the move. For giving their permission, his wife’s parents lost their laboratory jobs. His father, a university professor, later lost his job, too. The traditional stop en route to Israel was Vienna, but from there Vilenkin, his wife and 1-year-old daughter went to Rome instead, arriving in 1976. They met with the U.S. Consulate in Rome and, after a three-month wait, were finally granted a visa to the U.S.

Back to the Big Bang

In fall 1977, Vilenkin took a postdoctoral position at Case Western Reserve, where he was supposed to study the electrical properties of heated metals. Still, he found time on the side to theorize about spinning black holes and their mysterious magnetic fields. A year later, he got his lucky break when Tufts offered him a one-year visiting position. He took a gamble by poring himself into cosmology, an area considered fringe at the time. 

That would soon change. In late 1979, a Stanford physics postdoc named Alan Guth offered an explanation for the explosive force behind the Big Bang. Guth’s intellectual leap stemmed from theories in particle physics, which held that at extremely high energies — far higher than could ever be reached in a laboratory — a special state of matter would turn gravity upside down, rendering it a repulsiverather than an attractive force. 

A patch of space containing a tiny bit of this unusual matter could repel itself so violently as to literally blow up. Guth suggested that a tremendous burst of this sort triggered the Big Bang, swiftly enlarging the universe so much it doubled in size at least 100 times. This exponential growth spurt — called cosmic inflation — was short-lived, however, lasting just a tiny fraction of a second because the repulsive material quickly decayed, leaving behind the more familiar forms of matter and energy that fill the universe today.

The idea simultaneously solved a number of puzzles in cosmology. It explained where the “bang” behind the Big Bang came from and how the cosmos got so big. Rapid inflation in every direction also explained why the universe we now observe is so homogeneous, and why the temperature of the background radiation left over from that primordial blast is uniform, in every patch of the sky, to one part in 100,000. Inflation also revitalized cosmology, giving theorists like Vilenkin plenty to think about — and a bit more respectability to boot.

The Never-Ending Story

By 1982, a couple of years after Guth’s breakthrough, Vilenkin had a realization of his own: The process of inflation had to be eternal, meaning that once it started, it never fully stopped. Inflation might end abruptly in one region of space, such as the one we inhabit, but it would continue elsewhere, setting off a never-ending series of big bangs. Each bang would correspond to the birth of a separate “pocket” universe, which might be pictured as an expanding bubble — one of countless bubbles floating around within the “multiverse,” as it’s sometimes called.

As Vilenkin saw it, inflation’s eternal nature stemmed from two competing properties of the cosmic fuel, the gravity-repulsive material that caused the universe to rapidly expand. On the one hand, the material was unstable, much like radioactive substances, and was thus doomed to decay. On the other hand, the material expanded far faster than it decayed, so even though decay might stop inflation in certain regions, runaway growth would continue in others.

As an analogy, Vilenkin suggests a blob of bacteria that wants to keep reproducing and growing, while bacteria-killing antibodies try to curtail that growth. If the bacteria reproduce much faster than they’re destroyed, they will swiftly multiply and spread even though their reproduction may be thwarted in some quarters. Either way you look at it, the net result is that inflation (or bacterial growth) never ends everywhere at once and is always going on in some portion of the multiverse — even as you read this magazine.

To gain a better sense of the phenomenon, Vilenkin teamed up in 1986 with a Tufts graduate student, Mukunda Aryal, on a computer simulation that showed what an eternally inflating universe might look like. In their simulation, inflating regions, or bubbles, started small and steadily grew, while the space between bubbles stretched out as well. Each bubble — representing a mini-universe like ours — was surrounded by smaller bubbles, which were themselves surrounded by even smaller bubble universes, in turn.

Road to Eternity

In Vilenkin’s bubbling universe, inflation was, by definition, eternal into the future. Once initiated, it would not stop. But was it also eternal into the past? Was there ever a time when the universe was not inflating? And if the universe were always inflating, and always expanding, would that imply that the universe itself was eternal and had no beginning?

To address this question, Vilenkin joined forces with Guth and Long Island University mathematician Arvind Borde. Using a mathematical proof, they argued that any expanding universe like ours had to have a beginning. The thought experiment they posed went like this: Imagine a universe filled with particles. As it steadily expands, the distance between particles grows. It follows that observers sprinkled throughout this expanding universe would be moving away from each other until, eventually, they occupied widely scattered regions of space. If you happened to be one of those observers, the farther an object was from you, the faster it would be moving away. 

Now throw into the mix a space traveler moving through space at a fixed speed: He zooms past Earth at 100,000 kilometers per second. But when he reaches the next galaxy, which is moving away from us at, say, 20,000 kilometers per second, he will appear to be moving only 80,000 kilometers per second to observers there. As he continues on his outward journey, the space traveler’s speed will appear smaller and smaller to the observers he passes. Now we’ll run the movie backward. This time, the space traveler’s velocity will appear faster and faster at each successive galaxy.

If we assume inflation is eternal into the past — that it had no beginning — the space traveler will eventually reach and overtake the speed of light. A calculation by Borde, Guth and Vilenkin showed that this would happen in a finite amount of time. But according to the laws of relativity, it is impossible for any massive object to reach the speed of light, let alone exceed it. “This cannot happen,” says Vilenkin. “So when you follow this space traveler’s history back in time, you find that his history must come to an end.” 

The fact that the traveler’s journey backward in time hits an impasse means that there’s a problem, from a logical standpoint, with the assumption of an ever-expanding universe upon which this whole scenario is based. The universe, in other words, could not always have been expanding. Its expansion must have had a beginning, and inflation — a particularly explosive form of cosmic expansion — must have had a beginning, too. By this logic, our universe also had a beginning since it was spawned by an inflationary process that is eternal into the future but not the past. 

Something From Nothing

A universe with a beginning begs the vexing question: Just how did it begin? Vilenkin’s answer is by no means confirmed, and perhaps never can be, but it’s still the best solution he’s heard so far: Maybe our fantastic, glorious universe spontaneously arose from nothing at all. This heretical statement clashes with common sense, which admittedly fails us when talking about the birth of the universe, an event thought to occur at unfathomably high energies. It also flies in the face of the Roman philosopher Lucretius, who argued more than 2,000 years ago that “nothing can be created from nothing.” 

Of course, Lucretius had never heard of quantum mechanics and inflationary cosmology, 20th-century fields that contest his bold claim. “We usually say that nothing can be created out of nothing because we think it would violate the law of conservation of energy,” a hallowed principle in physics holding that energy can neither be created nor destroyed, Vilenkin explains. So how could you create a universe with matter in it, where there had been nothing before?

“The way the universe gets around that problem is that gravitational energy is negative,” Vilenkin says. That’s a consequence of the fact, mathematically proven, that the energy of a closed universe is zero: The energy of matter is positive, the energy of gravitation is negative, and they always add up to zero. “Therefore, creating a closed universe out of nothing does not violate any conservation laws.” 

Vilenkin’s calculations show that a universe created from nothing is likely to be tiny, indeed — far, far smaller than, say, a proton. Should this minute realm contain just a smattering of repulsive-gravity material, that’s enough to ensure it will ignite the unstoppable process of eternal inflation, leading to the universe we inhabit today. If the theory holds, we owe our existence to the humblest of origins: nothing itself.

One virtue of this picture, if correct, is that the spontaneous creation of our universe gives a definite starting point to things. Time begins at the moment of creation, putting to rest the potentially endless questions about “what happened before that.” 

Yet the explanation still leaves a huge mystery unaddressed. Although a universe, in Vilenkin’s scheme, can come from nothing in the sense of there being no space, time or matter, something is in place beforehand — namely the laws of physics. Those laws govern the something-from-nothing moment of creation that gives rise to our universe, and they also govern eternal inflation, which takes over in the first nanosecond of time.

That raises some uncomfortable questions: Where did the laws of physics reside before there was a universe to which they could be applied? Do they exist independently of space or time? “It’s a great mystery as to where the laws of physics came from. We don’t even know how to approach it,” Vilenkin admits. “But before inflation came along, we didn’t even know how to approach the questions that inflation later solved. So who knows, maybe we’ll pass this barrier as well.”

In the Clint Eastwood movie Magnum Force, Harry Callahan says, “A man’s got to know his limitations,” but Vilenkin’s work is a testament to pushing past traditional limits. If we persevere in the face of skepticism and doubt, as Vilenkin is often inclined to do, interesting and unexpected ideas may well emerge — just like a universe popping out of nowhere.

Eliminating the Loopholes

Loophole #1

To bolster his hypothesis, Vilenkin has studied other model universes, eliminating loopholes that contradict the idea of a clear-cut cosmic debut. In a 2012 paper with Tufts graduate student Audrey Mithani, Vilenkin examined the “cyclic” universe investigated by physicists Paul Steinhardt of Princeton University and Neil Turok, now at the Perimeter Institute.

In this model, there is neither a single Big Bang nor a single beginning. Instead, the universe continually goes through oscillating cycles of expansion, contraction, collapse and expansion anew. The catch is that the cyclic universe runs into the second law of thermodynamics, which says the entropy, or disorder, of a closed system will inevitably increase over time. 

For example, an ornate brick mansion is highly ordered, whereas a pile of bricks strewn across the ground — the result of the ravages of nature and decades or centuries of neglect — is more disordered. And brick dust, scattered by wind and water after the bricks themselves have deteriorated, is even more disordered. Left on its own, a system — even a bubble universe — will naturally go this way. We don’t often see a brick mansion spontaneously reassembling itself from dispersed dust. 

If our universe has been here forever and maintained a stable size, it, too, would have succumbed to the second law. Disorder would have inexorably increased to the point that the universe would now be a smoothed-out, featureless blur. But that’s not what we see at all. Instead, we see a universe filled with grand cosmic structures — galaxies, clusters of galaxies, clusters of clusters called superclusters, and clusters of superclusters called galaxy filaments — some of the latter stretching a billion or more light-years across.

For that reason, Vilenkin rules out the cyclic universe picture unless one makes the added assumption that after each cycle of expansion and contraction, the universe ends up somewhat bigger than when it started. The stipulation would leave us with another expanding universe, meaning that the original Borde-Guth-Vilenkin theorem would still apply: An ever-expanding universe must have a single beginning.

Loophole #2

Another possible loophole is the “cosmic egg” scenario, a model universe advanced by South African cosmologist George Ellis, among others. According to this view, the universe can sit forever in a stable configuration, with a fixed size and radius, until it suddenly starts to expand — like an egg hatching after an exceptionally long incubation phase. 

The trouble with this proposition, according to Vilenkin and Mithani, is that the small “stable” universe is not so stable after all. Sometime during the long waiting phase it would collapse to nothingness, before it ever reached the expansionist period — that is, if the laws of quantum mechanics are to be believed. 

Quantum mechanics, the prevailing branch of physics for describing how things work on atomic scales, is exquisitely well-tested, and exquisitely weird. Quantum mechanics holds that if there is even the tiniest chance of something happening, however absurd it may sound, that thing is sure to happen if you wait long enough. 

As it turns out, quantum mechanical formulas predict a slim (but nonzero) chance of the cosmic egg universe collapsing to zero size, at which point the erstwhile universe would completely disappear. Given an infinite time span, which is what the cosmic egg scenario calls for, such a collapse would be unavoidable — even though the odds of it occurring at any one time are small — implying that the universe could not have existed forever.

Indeed, says Vilenkin, among all the ideas we’ve thought of so far for a universe without a beginning, none of them seem to work. “So the answer to the question of whether the universe had a beginning is yes, it probably did.”

[This article originally appeared in print as "Starting Point."] 

Choosing Life And The Responsibilities of Good Earth Caretake Which Go With It.

My apologies ahead of this article I wrote today. Cold reality seems to have gripped my spirit this morning on a subject I consider quite important. So here goes...

Alaskans lighting the snow on fire... what gives?? We should remember that in addition to glacial melting, on the bottom of the ocean floor resides another vast quantity of methane gas slowly cycling upwards through the hydraulic salinity "cyclone streams" pouring out of the North Atlantic's sea beds. As it enters into the surfaces of the ocean it than transpires into the atmosphere to add to the CO2 load held in the air which, of course, then heats everything up.

Humanity has already reached the tipping point as the earth is heats up evidenced by major weather events across the globe. These events would include all the fire conflagrations which have followed the seasons this past year as they have moved from South America's fires into North America's devastated west lands. Without checking (I'll let the reader do this) I assume this is also occurring across the seas from India into Russia. Then there are major weather events caused by global warming like coastal flooding, wind storms, the dying off of animal and insect populations, the movement of warm latitude flora northwards into once colder areas, the rapid changing of the coastlines where most populations live, etc and etc.

The point being, we tend to be optimistic against the streams of negative reality, so we hope our current and future technologies might be able to capture these new sources of raw energy to utilize it in a way that is nurturing to the earth. How that occurs I have no idea because even though you can break gas down its residual gases still must be "recycled" in a way that isn't harmful to the environment.

My last observation: The earth has always gone through periods of warming - as we are witnessing now. Sometimes it is a prolonged period before it goes back into a "winter sleep" or ice age of some kind. What makes this warming event unusual is that the warming period mankind is experiencing is based upon anthropocene events (e.g., "Man Made events"). As such, a "warming earth" in response to mankind's industrial efforts to provide food, clothing, housing, and transportation makes it all-more-unusual-and-worrisome in its after effects. Usually biologic life dies off in the extreme cases, while at other times it morphs evolutionally into something else. Whatever the case is we won't know because we won't live long enough to see this environmental vs. biologic evolutionary life cycle. Those events take millions, tens of millions, and even hundreds of millions of years to produce.

Which is why religion becomes important to many, as we understand ourselves to be temporary life-events which come-and-go with whatever evolutionary opportunity presents itself. But for the spiritual person, we understand we are part of a much larger cycle of life occurring all around us. For now, the age of Homo Sapiens has been occurring well over the past several hundred thousand years (250,000 BC? earlier? 600,000 BC?). Eventually something else transpires and our race will change again. We know this as the "cycle of life" and relate to it through a faith that usually says, "Whatever the event, our God is present with us, even unto death itself."

But the unkindness of this thought is that the world's industrial revolution has been so successful that we have succeeded in displacing our biologic record sooner than later. Again, perhaps with a global embrace of "solving earth-warming events", mankind might outlast itself. But from what we've seen and read in the most mechanized civilization on the planet, America, this hope is a fiction and does not seem to reinforce that the effort required to solve massive global warming domestically, let alone internationally. Interestingly, lesser mechanized civilizations like China and India are attempting to make greater strides in environmental legislation - but out of necessity because of the high atmospheric smogs covering their large cities whose populations are choking down and ingesting atmospheric wastes. The health effects on both citizen and nature has been immense. America too, has these events going on in it - it just isn't being talked about in the press which has become victimized by a growing society of "fake news" or, "post-truth", adherents.

The point is, we've gone past the point of no-return in global population growth. Eight billion people is a lot. Within 30-50 years the earth will hold 12 billion and rising unless global events remove this growth pattern. What we know is that population grown is becoming unsustainable as it cannibalizes its resources leaving none for future generations ahead of itself. But no worries, what the earth doesn't kill off in weather events, plagues and pan virus epidemics well. It won't require massive wars to kill each other off for dwindling resources like drinking water and green spaces to grow food. Nope, we'll be helped along in our destruction by the events we have unknowingly set in place - and have kept in place - through ignorance or dismissal.

As such, I rest in the knowledge that the Lord is there to guide us into life-filled, physically and spiritually healthy directions. However, it is to our destruction when we ignore this divine guidance by marching to the beat of our own music. The bible does illustrate this life lesson in repeated cycles described as "sin" throughout its Old and New Testament journeys. As much, to those faithful to the God of Creation, we seek to listen and obey to His instruction to remember our caretake of this fragile earth from which so much blessing has been reaped and from which so much hope is derived.

Peace,

R.E. Slater

August 15, 2018

Related Topics - The Amazing Story of Oxygen

Human Evolution. How Does it Fit with the Recent Discovery of the genus, "Homo Naledi?"

Growing up as a conservative evangelical Christian I had been taught to consider the story of human evolution as spurious to the Word of God. Over the decades I have reconsidered all the arguments for special creation and against evolutionary creation and now deem my earlier education misdirected. That I may now rightly hold to progressive creationism (as opposed to immediate creationism) and consider it "divinely supernatural and special."

That the Creator God of the universe had supernaturally decreed creation's possibility using the operands of randomness and chaos and be ruled by the teleological principle of life as "always tilting towards biologic struggle and survival" regardless of the (toxic) eco-environments this struggle might occur within. As example, oxygen was a deadly toxin to evolutionary life at one time. As such, at all times the equation of "life" will be tilted towards the principles of creative "freedom" within a weak entropic system (which posits ultimate chaos) against a strong entropic system (which posits ultimate determinism) thus allowing for an evolutionary progression whereby the Sovereign Creator may have fellowship of a kind with His creation.

This then is the scientific teleology of evolution by the decree of its Creator God as proceeding from His very being and essence of love. A chaotic system always tilted towards life of some form. To the Christian, this teleology might take its ultimate form in a chaotic cosmic/natural system driving towards biotic enrichment, thriving biotas, and creative imagining. This may also be known as the Christian hope, which is a kind of theological eschatalogy coupled with Jesus' rule (I prefer the idea of divine participation) of love and goodwill with mankind and creation itself. Thus, evoloution's teleology can unfold toward the Christian hope of loving fellowship between, within, without, and everywhere about, all things (what the process theologian might know as panentheism's complex of driving relationships).

Once realizing this, I have lately, in recent years, worked towards describing how this progressive evolutionary creation may exist both on a doctrinal level as well as on a scientific one without going beyond the bounds of modern science (excepting, of course, that I write of it from a theologic and not an agnostic, or a/theistic, viewpoint).

And so, in today's posting, I wish to further explore the idea of human evolution through its taxonomical graphs and charts of recent discoveries of the 2.8 million year old homo naledi (star) species. A remarkable discovery found in an ancient graveyard deep underground by a nimble anthropological team of spelunking women who made this phenomenal discovery happen.

Question 1. Why is the chimpanzee closer to the homo genus than the gorilla? And where do orangutans fit in to this zoological chart?

The homo genus has been characterised exclusively as a genus of "bipedal apes" commonly known as "homo erectus" from which the word "humans" derive but differing from the chimpanzee (pan group) which half walks using both legs and all four limbs to travel. The larger family of apes from which humans have descended, such as the gorilla, or orangutan, primarily use all four limbs to travel while occassionally utilizing bi-pedal motion much less of the time than the chimpanzee genus.

Though all come from the superfamily of hominoidea - as can be seen from the taxonomical charts pictured above - as the species continued to evolve it became separated by zoological classifications from tree dwelling apes (gibbons), to partially tree-dwelling apes (orangutans), to ground/tree dwelling apes (gorillas), to ground/tree dwelling semi-bipedal apes (bonobos, chimpanzees), to exclusively ground dwelling bipedal apes (man).

The chart consequently shows how the chimpanzee genus is further removed from the gorilla genus and is more closely linked to the human genus. This is also supported by evolutionary genetic studies. As a result, the common chimpanzee and the bonobo (pygmy or dwarf chimp) of the genus Pan are the closest living evolutionary relatives to humans, sharing a common ancestry with humans from about four to seven million years ago."

At the perspective of a time-scale, this elapsed period of time also evidences the divergence of humans from chimpanzees. More specifically, the final separation of the Homo genus from the Pan genus is approxiamately 2.8 million years old thus showing us of the importance of the recent "Homo Naledi" cave discovery in August of 2015 in South Africa's Star Cave system.

What does this mean theologically?

In evolutionary terms it is pretty plain how human creation evolved from anthropological studies of the ape. And in theological terms, the passages in Genesis provide an ancient (Hebrew) tribal explanation to creation in non-evolutionary terms as this anthropology was unknown then. However, many well-meaning, Christians have attempted to show a 1:1 correlation between Genesis 1 with either progressive or immediate "theistic evolution" which would be an interpretive error both from a cultural standpoint as well as from a scientific one. At this time ancient man, such as the Semetic and Hebraic tribes, had no knowledge of either science or evolution. Moreover, the implication by theologians of insinuating human guidance by divine authorship supra-intending over a culture's era-specific ignorance is also a conjectural error to the surmise of textual formation.

The take away? Rather than getting hung up on a literal reading or correlation of the Genesis creation stories we may be confident that creation derives from a Creator who crafted an unusually complex method of creation by using all the ingredients of evolution to obtain the current results we are biologically familiar with. And that its testimony in Genesis is simply a literary account by the ancients using mythological description to describe this very same event in their own lay terms and knowledge of their day.

What does this mean? That God is neither denied nor mocked. That He is still Creator-Redeemer and shown to be intimately involved with His creation from whatever direction it came. Similarly, the bible is brought back down to reality, it is no longer made a mystical nor irrelevant collection of ancient manuscripts, and that we might rightly "divide / interpret" it more attuned or appropriately to its times and cultures. Which also means that this same Creator-Redeemer God then is active in our societies and cosmos today as much as He was beforetimes. We have lost nothing except our mistaken impulses to defend or mock our Creator. He needs no defense because He is. And any mockery but shows our deep shallowness to the everyday realities about us.

Too, we must now come to understand that evolution is always occurring - both in our present day as well as in the future beyond us. That it is a process which never stops. That underneath life itself is the continuing titanic struggle of biologic life to always exist despite the (toxic) eco-environments now present or occurring in the future.

This is the marvel of God's creation and the cosmic/biologic equation He has set in place so that at any present moment we, as homo sapiens (human beings), might have fellowship with our Creator-Redeemer, or any derivations of ourselves in ages future. But as humans, we cannot assume we are in exclusive communication with our Creator alone. Even the Psalmists and Prophets have written of the mountains and valleys, seas and skies, trees and fields, and all the living things on earth, as having a "form of communication" with its Creator. That it "delights" in His fellowship, "dances," "sings for joy," and "claps its hands" in response to His Almighty voice. Nay, we are not alone in our praise and dependence upon our Creator God who loves His creation and draws us toward Him into divine fellowship with one-and-all.

And though I do not encourage any form of "supernatural mystical communication" with the trees and mountains, birds and bees, still we find in the poetry and essays of human journals the deep realization that all things are connected and in communication with itself and its Creator God. What I might describe as a form of (process) panpsychism; but again, without getting all crazy and mystical about this observation. As we walk creation's fields and meadows, swim its streams and dive below its waters, we sense God's almighty hand of authorship in its templed majesties and shrouded veils of glory. The godfathers of ecology, John Muir, Henry David Thoreau, and Aldo Leopold, each in their own way reveled in this divine communion connecting humanity's existence even to the original American Indians who sensed the same in their animistic Spirit stories of creational connectedness and sacred fellowship.

Conclusion

To read Genesis then is to read it NOT in an evolutionary context but as (i) an ancient composition set within a paleo-creational understanding of a Creator-God named for His creational activity and perceived by the ancient's supernaturally curious wonder of life's many complex spheres of divine / human / creational interactions; (ii) that into creation's holy charters came creational indeterminacy and sentient freewill struggling between goodness and evil, order and disorder, each redefining the other in terms of fellowship and holiness; (iii) an immediate communion and fellowship with the Creator God and what it may mean for creation and mankind; (iv) that within this communion of struggle, of obedience, and willfulness, both creation and humanity came to be pitted against its God, each other, and themselves; (v) which is then described in terms of "life and death, light and darkness" within the hallowed altars of holy communion; (vi) that with death came the promise of God to be not only "Creator" but "Redeemer" - not only to mankind but to His holy creation as well; and finally, (vii) this holy redemption would come by grace and mercy, forgiveness and resurrection. This then is the fuller story of Genesis when read apart from its more popular classical or literal understanding rejecting evolution. It was what the ancients saw then of God's promise and what we need to see now in our dilemma between science, anthropology, and faith.

To this marvel of God's complex creation we may only bow our heads and utter, "Thank you O blessed Redeemer for your promise of life in the midst of death. Praise you for your wisdom and goodness and grace. For the majesty of your name and the councils of your justice when all things will be made new, and good, and holy, once more. Amen."

R.E. Slater

September 13, 2015
edited September 26, 2015; March 17, 2020

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Hominini

From Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Hominini

Not to be confused with Hominoidea, Hominidae, Homininae, or Hominina.

The Hominini is a tribe of the subfamily Homininae; it comprises three subtribes: Hominina, with its one genus Homo; Australopithecina, comprising several extinct genera (see taxobox); and Panina, with its one genus Pan, the chimpanzees (see the evolutionary tree below).[3][4] Members of the human clade, that is, the Hominini, including Homo and those species of theaustralopithecines that arose after the split from the chimpanzees, are called hominins; cf. Hominidae; terms "hominids" and hominins).

The subtribe Hominina is the "human" branch; that is, it contains the genus Homo exclusively. Researchers proposed the taxon Hominini on the basis that the least similar species of atrichotomy should be separated from the other two. The common chimpanzee and the bonobo of the genus Pan are the closest living evolutionary relatives to humans, sharing a common ancestor with humans about four to seven million years ago.[5] Research by Mary-Claire King in 1973 found 99% identical DNA between human beings and chimpanzees;[6] later research modified that finding to about 94% commonality, with some of the difference occurring in noncoding DNA.[7]

Sahelanthropus tchadensis is an extinct hominid species that lived 7 million years ago, very close to the time of the chimpanzee–human divergence. It is unclear whether or not it may be classed as hominin—that is, whether it rose after the split from the chimpanzees, or not.

A source of confusion in determining the exact age of the Pan–Homo split is evidence of a complex speciation process rather than a clean split between the two lineages. Different chromosomes appear to have split at different times, possibly over as much as a 4-million-year period, indicating a long and drawn out speciation process with large-scale hybridization events between the two emerging lineages as late as 6.3 to 5.4 million years ago according to Patterson et al. (2006).[8] The assumption of late hybridization was in particular based on the similarity of the X chromosome in humans and chimpanzees, suggesting a divergence as late as some 4 million years ago. This conclusion was rejected as unwarranted by Wakeley (2008), who suggested alternative explanations, including selection pressure on the X chromosome in the populations ancestral to the chimpanzee–human last common ancestor (CHLCA).[9]

All the extinct genera listed in the taxobox are ancestral to, or offshoots of, Homo. Few fossil specimens on the Pan side of the split have been found—the first discovery of a fossil chimpanzee was published in 2005;[10] it was from Kenya's East African Rift Valley and dated to between 545 thousand years, radiometric, (kyr) and 284 kyr (via argon–argon dating). However, both Orrorin and Sahelanthropus existed around the time of the split, and so may be ancestral to both Pan and Homo.

In the proposal of Mann and Weiss (1996),[11] the tribe Hominini includes Pan as well as Homo, but within separate subtribes. Homo and (by inference) all bipedal apes are referred to the subtribe Hominina, while Pan is assigned to the subtribe Panina. Wood (2010) discusses the different views of this taxonomy.[12]

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Lee R. Berger, a professor of human evolution studies at the University of

the Witwatersrand  in Johannesburg, unveiled a previously unidentified species

of the early human lineage — Homo naledi. By REUTERS on Publish Date

Homo Naledi, New Species in Human Lineage, Is Found in South African Cave

http://www.nytimes.com/2015/09/11/science/south-africa-fossils-new-species-human-ancestor-homo-naledi.html?_r=0

by John Noble Wildord

September 10, 2015

Acting on a tip from spelunkers two years ago, scientists in South Africadiscovered what the cavers had only dimly glimpsed through a crack in a limestone wall deep in the Rising Star Cave: lots and lots of old bones.

The remains covered the earthen floor beyond the narrow opening. This was, the scientists concluded, a large, dark chamber for the dead of a previously unidentified species of the early human lineage — Homo naledi.

The new hominin species was announced on Thursday by an international team of more than 60 scientists led by Lee R. Berger, an American paleoanthropologist who is a professor of human evolution studies at the University of the Witwatersrand in Johannesburg. The species name, H. naledi, refers to the cave where the bones lay undisturbed for so long; “naledi” means “star” in the local Sesotho language.

In two papers published this week in the open-access journal eLife, the researchers said that the more than 1,550 fossil elements documenting the discovery constituted the largest sample for any hominin species in a single African site, and one of the largest anywhere in the world. Further, the scientists said, that sample is probably a small fraction of the fossils yet to be recovered from the chamber. So far the team has recovered parts of at least 15 individuals.

“With almost every bone in the body represented multiple times, Homo naledi is already practically the best-known fossil member of our lineage,” Dr. Berger said.

The finding, like so many others in science, was the result of pure luck followed by considerable effort.

Two local cavers, Rick Hunter and Steven Tucker, found the narrow entrance to the chamber, measuring no more than seven and a half inches wide. They were skinny enough to squeeze through, and in the light of their headlamps they saw the bones all around them. When they showed the fossil pictures to Pedro Boshoff, a caver who is also a geologist, he alerted Dr. Berger, who organized an investigation.

"Just getting into the chamber and bringing out samples proved to be a huge challenge.

The narrow opening was the only way in." - Lee Burger

Paul Dirks, a geologist at James Cook University in Australia, who was lead author of the journal paper describing the chamber, said the investigators first had a steep climb up a stone block called the Dragon’s Back and then a drop down to the entrance passage — all of this in the total absence of natural light.

For the two extended investigations of the chamber in 2013 and 2014, Dr. Berger rounded up the international team of scientists and then recruited six excavating scientists through notices on social media. One special requirement: They had to be slender enough to crawl through that crack in the wall.

One of the six, who were all women and were called “underground astronauts,” was Marina Elliott of Simon Fraser University in British Columbia. She said the collection and removal of the fossils involved “some of the most difficult and dangerous conditions ever encountered in the search for human origins.”

Photo by the New York Times

Besides introducing a new member of the prehuman family, the discovery suggests that some early hominins intentionally deposited bodies of their dead in a remote and largely inaccessible cave chamber, a behavior previously considered limited to modern humans. Some of the scientists referred to the practice as a ritualized treatment of their dead, but by “ritual” they said they meant a deliberate and repeated practice, not necessarily a kind of religious rite.

Pieces of a skeleton of Homo naledi, a newly discovered human species.

CreditJohn Hawks/University of Wisconsin-Madison, via European Pressphoto Agency

“It’s very, very fascinating,” said Ian Tattersall, an authority on human evolution at the American Museum of Natural History in New York, who was not involved in the research.

“No question there’s at least one new species here,” he added, “but there may be debate over the Homo designation, though the species is quite different from anything else we have seen.”

A colleague of Dr. Tattersall’s at the museum, Eric Delson, who is a professor at Lehman College of the City University of New York, was also impressed, saying, “Berger does it again!”

Dr. Delson was referring to Dr. Berger’s previous headline discovery, published in 2010, also involving cave deposits near Johannesburg. He found many fewer fossils that time, but enough to conclude that he was looking at a new species, which he named Australopithecus sediba. Geologists said the individuals lived 1.78 million to 1.95 million years ago, when australopithecines and early species of Homo were contemporaries.

Lee R. Berger, leader of a research team, in the Rising Star Cave near Johannesburg,

where over 1,550 fossil elements were found. CreditNaashon Zalk for The New York Times

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An expert all-women team of anthropologists dared the suffocating passages
of the South African Star Cave system. Kudos!

A Mighty Girl

https://www.facebook.com/amightygirl/photos/a.360833590619627.72897.316489315054055/901760099860304/?type=1&fref=nf&pnref=story

September 11, 2015

The discovery of a new hominin species is making headlines around the world this week but what many people don't realize is that the excavation team that uncovered this historic find was made up of six daring women scientists! The fossils were found at the bottom of a cave system in South Africa; one of the scientists, Marina Elliott, said that their collection and removal involved "some of the most difficult and dangerous conditions ever encountered in the search for human origins.” Thanks to the dedication of these six women, people everywhere will have the opportunity to gain new insight into the development of our species.

Palaeoanthropologist Lee Berger learned about the fossils in Rising Star Cave in October 2013 -- as well as their location, at the bottom of a 36 foot long shaft that gets as narrow as 7 inches across. He put up an ad on Facebook seeking scientists with a background in archaeology or paleontology, but with a catch: “the person must be skinny and preferably small. They must not be claustrophobic, they must be fit, they should have some caving experience, climbing experience would be a bonus.” He remembers thinking that “maybe there were three or four people in the world who would fit that criteria”, but within days he had 60 qualified applicants from around the world. He narrowed those down to six: Marina Elliott from Canada, Elen Feuerriegel from Australia, and K. Lindsay Eaves, Alia Gurtov, Hannah Morris, and Becca Peixotto from the United States.

Elliott, who was finishing a Ph.D. at Simon Fraser University when she saw the ad, was first on the scene. “I was predisposed to extreme environments,” she says. “Telling me that I’d have to do climbing, that it would be underground, and that it would be strange and potentially dangerous… it appealed.” Even still, she vividly recalls her first sight of the chute: “It’s a long crack, punctuated by shark-teeth protrusions. I remember looking down and thinking: I’m not sure I made the right decision." Given the difficulty and potential danger of the climb, Berger nicknamed the team “underground astronauts.”

During the 21-day excavation of the Rising Star cave, the team had to work carefully: “There was so much material and it was friable and delicate,” Elliott says. “And every day, we realized that we were pulling out another 40 or 60 fragments of this thing that was going to be incredible.” She and her five caving teammates excavated a nearly unheard of collection of hominin fossils: 1,550 fragments from at least 15 skeletons, representing a mix of male and female individuals. In the words of Ed Yong of The Atlantic, “To find one complete skeleton of a new hominin would be hitting the paleoanthropological jackpot. To find 15, and perhaps more, is like nuking the jackpot from orbit.”

Debate about Homo naledi’s age and importance in human prehistory, as well as the intriguing possibility that the bones are in the cave as a form of burial ritual, will be ongoing for years, but no one doubts that it represents an extraordinary find. Elliott has remained on the ground in South Africa where she is now directing the field operation and leading expeditions into other caves, eager to discover what else is out there. As she says, “We’re just scratching the surface."

You can read more about the all-female team of “underground astronauts” and this historic find on The Atlantic at http://theatln.tc/1Fzdsxh

To learn about more trailblazing women of science from around the world, we highly recommend the new book "Headstrong: 52 Women Who Changed Science -- And The World," for teen and adult readers, ages 13 and up, at http://www.amightygirl.com/headstrong-52-women

To introduce children to one of the world’s first paleontologists, Mary Anning, we recommend "Mary Anning and The Sea Dragon" for ages 5 to 8 (http://www.amightygirl.com/mary-anning-and-the-sea-dragon), “Stone Girl, Bone Girl” for ages 4 to 8 (http://www.amightygirl.com/stone-girl) and “The Fossil Girl” for ages 5 to 9 (http://www.amightygirl.com/the-fossil-girl)

For a wonderful book about six remarkable women whose curiosity about nature fueled a passion to steadfastly overcome obstacles to careers in traditionally men-only occupations, we recommend "Girls Who Looked Under Rocks: The Lives of Six Pioneering Naturalists" for ages 10 and up at http://www.amightygirl.com/girls-who-looked-under-rocks

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For more of our favorite science toys for igniting your children's curiosity about the natural world, visit our "Science Toys" section at http://www.amightygirl.com/toys/toys-games/science-math

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