The history of the planet Earth, like human life, is filled with various important events and stages of development that have occurred since its birth. Before the planet Earth and all other celestial bodies appeared: planets and stars, clouds of dust flew in space. The blue planet, as well as other objects in the solar system, including the Sun, as scientists suggest, was formed by the compaction of a cloud of interstellar dust.
Earth was formed about 10 million years after the interstellar dust began to thicken. The released heat formed a celestial body from molten matter. After the planet Earth appeared. Differentiation of the layers of its constituents led to the appearance of an inner core of heavy elements wrapped in a mantle, the accumulation of light elements on the surface caused the formation of the proto-crust. At the same time, the Moon appeared, possibly due to a strong collision between the Earth and a huge asteroid.
Over time, the planet cooled, a hardened shell appeared on it - the crust, and subsequently the first continents. Since the moment the planet Earth appeared, it has been constantly bombarded by meteorites and ice comets, as a result, enough water has accumulated on the surface to form seas and oceans. Due to strong volcanic activity and steam, an atmosphere appeared in which there was practically no oxygen. Throughout the history of planet Earth, the continents have been floating on the molten mantle, joining, then separating, this has been repeated many times over 4.5 billion years.
Complex chemical reactions led to the appearance of organic molecules interacting with each other, more and more complex molecular structures appeared. As a result, this led to the emergence of molecules capable of self-copying. These were the first steps of Life on Earth. Living organisms developed, bacteria appeared, then multicellular organisms. During the life of these organisms, the composition of the atmosphere has changed. Oxygen appeared, which led to the development of a protective layer of ozone.
Life has developed in numerous forms, the number of species on Earth is striking in its diversity. Changes in environmental conditions throughout the history of the planet led to the emergence of new species, many of which later became extinct, others were able to adapt to the new environment and created the modern biosphere.
About 6 million years ago, after billions of years after Earth appeared, a branch of primate evolutionary differentiation led to the emergence of humans. The ability to walk on their hind legs, large increases in brain size, and development of speech were the main factors. At first, man learned to make fire, then he achieved success in the development of agriculture. This led to an improvement in life, which led to the formation of communities after civilizations, with different cultural and religious characteristics. Thanks to their achievements in various fields: science, politics, writing, transport and communications, people have become the predominant species on Earth. It is no longer the Earth that forms life forms, man changes the environment in the process of life. For the first time, the history of planet Earth is created by the forces of the creatures that inhabit it, and it is We who are forced to solve global issues of climate and other environment to preserve our habitat.
So we got to our planet with you.
How did the Earth actually form? While we, people living on this planet, are not ready to talk about it. We can measure and understand the size of the oceans and continents on our planet, how long it takes to fly somewhere in an airplane. Yes, we have some idea of \u200b\u200bthe planet of the solar system - Earth, although far from complete. The same questions arise - when, where and for what purpose?
I have already expressed earlier a hypothesis that our planet Earth may have been in another constellation and was a satellite of a completely different star (a source of thermal radiation). It was inhabited and there were humanoid and other creatures of gigantic proportions. Why giant? This is explained by only one factor, what kind of luminary and what energy it gives, that is, the closer to the source of magnetic energy, the more significant the size of flora and fauna will be. And of course, again there is dependence on the state of the planet itself, or rather its atmosphere.
Therefore, all the found skeletons of 10-20 meter people and various lizards belonged to a different era of life on Earth and not under our Sun light. What kind of civilization they had is hard to say. At some point (apparently, there were good reasons for this) something terrible happened with this planet and all living beings were doomed to die. After that, this planet could turn into just a large meteorite. But in view of the fact that this planet was unique in its internal reserves, kind super beings decided to preserve it.
To do this, they created a new magnetic star, our Sun (possibly on the outskirts of the Universe) and moved our planet to this place. Personally, I do not see something supernatural in this. Simply for this, it was necessary to install magnetic installations on the planet that could create a traction acceleration in the designated direction. Of course, it was necessary to constantly adjust this direction. A small planet, which we now call the Moon, could have been approximately such a spotter. We humans do not envision such opportunities. And for super creatures, this is a relocation of the planet by difficulty, perhaps the same as we drive heavy vehicles, for example, in the Sahara desert. Maybe the example is not very successful, but again we do not know the development of the technical intelligence of aliens. Then you can somehow explain the existence of a long ice age on our planet. Imagine a long journey through dark and cold space, and after that, a long thawing of the planet. Even those who remained on the planet at that moment were subject to sharp freezing and their bodies, like the entire surface of the planet, were covered with a multi-meter layer of ice. And this happened not for a hundred or 50 years, but more.
You can object to such a hypothesis, but no one can refute it.
And of course, the next item of intelligent beings, after placing the planet in the orbit of the Sun, is a new creation of life on the planet. But how to reanimate an extinct planet and re-create life?
We humanity, there was only one justification for the formation of planet Earth - this is a gradual collision of solid space objects and gases, which, with a long period of various reactions, formed our planet. I also cannot refute this, although I think it is nonsense. I just can't understand - small asteroids fought, destroyed and fought again. As soon as a small ball was created, it is again destroyed by the arriving asteroids. But then, let me ask you, who and how kindled a “fire” in the center of the planet, so that it would become lukewarm, and subsequently, from this warmth, our earthly atmosphere was created? As you understand, our Sun alone would not have been able to do this.
Have you ever wondered where the incomprehensible magma came from, why it has such huge temperatures, while our Earth does not heat up and even freezes in places? What is this magma core for? Many questions arise again.
After a general overview, let me state my hypothesis about the formation of our beloved planet. Our planet Earth has been moved into outer space.
"Traditional" structure of the Earth
At the same time, the necessary conditions have already been created, i.e. our Sun was originally made. After moving, our planet of the ball is “put” in the desired orbit in relation to the Sun. Now, it had to be heated from within to create life on this planet. Again, without knowledge of chemistry and physics, which is super incomprehensible to us, this cannot be done.
Let's turn to simple school physics. Just compare all the lines coming from the two permanent magnets. Is there a difference between such lines of our Earth and laboratory magnets. As you can see - none. All lines go from S to N. And then return in arcs. These are our laws, and the dogma for us in the field of permanent magnets.
It turns out that in the center of our planet there are the same permanent magnets or magnetic installations. Then it turns out that someone broke through our planet from the side of the poles and specially installed such magnets (magnetic installations). It is very difficult to do this, according to our concepts, but it is quite easy for intelligent beings to do it. With that kind of technical knowledge, there won't be much work.
By launching such magnetic installations into action, precisely along the axis of our globe from two sides, intelligent beings made a through tunnel. And then, using the same two magnetic devices, directing beams of magnetic energy towards each other (with different swirls of magnetic spirals), they created a reaction (as we understand thermonuclear), which has been working for many centuries. Believe me, I can imagine the power of such attitudes, it's elementary. Just go to the media again. According to their data, huge round openings were found on the surface of our planet, which were made not a hundred years ago, but already in our time. It's just that these intelligent beings are asked to believe that this is possible. And what tunnels inside the planet might be, we don't even guess.
We, humanity, have not yet begun to explore the inner cavities of our planet. For now, just drill it from all sides. I can even assume that the clever creatures that produced us have already taken care of the worst consequences that can occur on the surface (extinction of the sun's star, thermonuclear and various wars on the planet). Or maybe there, in the bowels of the Earth, there are already huge underground galleries, where the further residence of earthly humanity is possible.
The history of our planet still holds many mysteries. Scientists from various fields of natural science have contributed to the study of the development of life on Earth.
Our planet is believed to be about 4.54 billion years old. This entire time period is usually divided into two main stages: Phanerozoic and Precambrian. These stages are called eons or eonotems. Aeons, in turn, are divided into several periods, each of which is distinguished by a set of changes that occurred in the geological, biological, atmospheric state of the planet.
- Precambrian, or cryptose - This is an eon (the time period of the Earth's development), covering about 3.8 billion years. That is, the Precambrian is the development of the planet from the moment of formation, formation of the earth's crust, protoocean and the emergence of life on Earth. By the end of the Precambrian, highly organized organisms with a developed skeleton were already widespread on the planet.
The eon includes two more eonothems - katarchean and archaea. The latter, in turn, includes 4 eras.
1. Catarchaeus - this is the time of the formation of the Earth, but there was still neither a core nor an earth's crust. The planet was still a cold space body. Scientists suggest that during this period there was already water on the Earth. Catarchean lasted about 600 million years.
2. Archaea covers a period of 1.5 billion years. During this period, there was still no oxygen on the Earth, the formation of deposits of sulfur, iron, graphite, nickel took place. The hydrosphere and atmosphere were a single vapor-gas envelope that enveloped the globe in a dense cloud. The sun's rays practically did not penetrate through this veil, so darkness reigned on the planet. 2.1 2.1. Eoarcheus - this is the first geological era, which lasted about 400 million years. The most important event in the Eoarchean is the formation of the hydrosphere. But there was still little water, the reservoirs existed separately from each other and until they merged into the world ocean. At the same time, the earth's crust becomes solid, although asteroids are still bombing the Earth. At the end of the Eoarchean, the first supercontinent in the history of the planet, Vaalbara, is formed.
2.2 Paleoarchean - the next era, which also lasted about 400 million years. During this period, the core of the Earth is formed, the intensity of the magnetic field increases. A day on the planet lasted only 15 hours. But the oxygen content in the atmosphere increases due to the activity of bacteria that have appeared. Remains of these first forms of the Paleoarchean era of life have been found in Western Australia.
2.3 Mesoarchean also lasted about 400 million years. In the Mesoarchean era, our planet was covered by a shallow ocean. The land areas were small volcanic islands. But already during this period, the formation of the lithosphere begins and the mechanism of plate tectonics starts. At the end of the Mesoarchean, the first ice age is observed, during which snow and ice form for the first time on Earth. Biological species are still represented by bacteria and microbial life forms.
2.4 Neoarchean - the final era of the Archean eon, the duration of which is about 300 million years. Colonies of bacteria at this time form the first stromatolites on Earth (limestone deposits). The most important event in Neoarchean is the formation of oxygenic photosynthesis.
II. Proterozoic - one of the longest time periods in the history of the Earth, which is usually divided into three eras. During the Proterozoic, the ozone layer appears for the first time, the world ocean reaches almost its present volume. And after the longest Huronian glaciation, the first multicellular life forms appear on Earth - mushrooms and sponges. It is customary to divide the Proterozoic into three eras, each of which contained several periods.
3.1 Paleo-Proterozoic - the first era of the Proterozoic, which began 2.5 billion years ago. At this time, the lithosphere is fully formed. But the old forms of life due to the increase in oxygen content have practically died out. This period was called the oxygen catastrophe. By the end of the era, the first eukaryotes appear on Earth.
3.2 Meso-Proterozoic lasted approximately 600 million years. The most important events of this era: the formation of continental masses, the formation of the supercontinent Rodinia and the evolution of sexual reproduction.
3.3 Neo-Proterozoic... During this era, Rodinia disintegrates into about 8 parts, the Mirovia superocean ceases to exist, and at the end of the era, the Earth is covered with ice almost to the equator. In the Neoproterozoic era, living organisms for the first time begin to acquire a hard shell, which will later serve as the basis of the skeleton.
III. Paleozoic - the first era of the Phanerozoic eon, which began about 541 million years ago and lasted about 289 million years. This is the era of the emergence of ancient life. The supercontinent Gondwana unites the southern continents, a little later the rest of the land is joined to it and Pangea appears. Climatic zones begin to form, and the flora and fauna are represented mainly by marine species. Only by the end of the Paleozoic, land development begins, and the first vertebrates appear.
The Paleozoic era is conventionally divided into 6 periods.
1. Cambrian period lasted 56 million years. During this period, the main rocks are formed, and a mineral skeleton appears in living organisms. And the most important event in the Cambrian is the emergence of the first arthropods.
2. Ordovician period - the second period of the Paleozoic, which lasted 42 million years. This is the era of the formation of sedimentary rocks, phosphorites and oil shale. The organic world of the Ordovician is represented by marine invertebrates and blue-green algae.
3. Silurian period covers the next 24 million years. At this time, almost 60% of living organisms that existed before die out. But the first cartilaginous and bony fish in the history of the planet appear. On land, the Silurian is marked by the emergence of vascular plants. Supercontinent converges and form Laurasia. By the end of the period, ice melting was noted, sea level rose, and the climate became milder.
4. Devonian period is distinguished by the rapid development of various forms of life and the development of new ecological niches. Devon covers a time span of 60 million years. The first terrestrial vertebrates, spiders, insects appear. Lungs are formed in sushi animals. Although, as before, fish predominate. The kingdom of the flora of this period is represented by pro-ferns, horsetails, lyre and goosemen.
5. Carboniferous period often referred to as carbon. At this time, Laurasia collides with Gondwana and the new supercontinent Pangea appears. A new ocean is also formed - Tethys. This is the time of the appearance of the first amphibians and reptiles.
6. Permian period - the last period of the Paleozoic, which ended 252 million years ago. It is believed that at this time a large asteroid fell to the Earth, which led to significant climate change and the extinction of almost 90% of all living organisms. Most of the land is covered with sands, the most extensive deserts that have existed in the entire history of the development of the Earth appear.
IV. Mesozoic - the second era of the Phanerozoic eon, which lasted for almost 186 million years. At this time, the continents acquire an almost modern shape. A warm climate contributes to the rapid development of life on Earth. Giant ferns disappear, and angiosperms appear to replace them. The Mesozoic is the era of the dinosaurs and the appearance of the first mammals.
In the Mesozoic era, three periods are distinguished: Triassic, Jurassic and Cretaceous.
1. Triassic period lasted just over 50 million years. At this time, Pangea begins to split, and the inland seas gradually become shallow and dry. The climate is mild, the zones are not pronounced. Almost half of the land plants disappear as deserts spread. And in the kingdom of fauna, the first warm-blooded and land reptiles appear, which became the ancestors of dinosaurs and birds.
2. Jurassic period covers an interval of 56 million years. A humid and warm climate reigned on Earth. The land is covered with thickets of ferns, pines, palms, cypresses. Dinosaurs reign on the planet, and numerous mammals were distinguished by their small stature and thick hair.
3. Cretaceous period - the longest period of the Mesozoic, lasting almost 79 million years. The split of the continents is practically coming to an end, the Atlantic Ocean is significantly increasing in volume, ice sheets are forming at the poles. The increase in the water mass of the oceans leads to the formation of the greenhouse effect. At the end of the Cretaceous period, a catastrophe occurs, the reasons for which are still not clear. As a result, all dinosaurs and most species of reptiles and gymnosperms became extinct.
V. Cenozoic - This is the era of animals and Homo sapiens, which began 66 million years ago. The continents at this time acquired their modern shape, Antarctica occupied the south pole of the Earth, and the oceans continued to grow. The plants and animals that survived the Cretaceous catastrophe found themselves in a completely new world. Unique communities of life forms began to form on each continent.
The Cenozoic era is divided into three periods: Paleogene, Neogene and Quaternary.
1. Paleogene period ended about 23 million years ago. At this time, a tropical climate reigned on Earth, Europe was hiding under evergreen tropical forests, only deciduous trees grew in the north of the continents. It was during the Paleogene period that mammals developed rapidly.
2. Neogene period covers the next 20 million years of the planet's development. Whales and bats appear. And, although saber-toothed tigers and mastodons still roam the earth, the fauna is increasingly acquiring modern features.
3. Quaternary period began more than 2.5 million years ago and continues to this day. Two major events characterize this time period: the ice age and the emergence of man. The Ice Age completely completed the formation of the climate, flora and fauna of the continents. And the appearance of man marked the beginning of civilization.
the theory of the collision of the Sun with a comet. As a result of this collision, material was released from which both planet Earth and other planets originated.
