|My Writing About How Life on Earth Began|
We who incidentally are intelligent creatures are always thirsty for curiosity. How come? Just leave the house and raise your head, our view is shown something that has no boundaries. The sky is bright blue during the day and pitch black at night. Decorated with floating clouds and flying birds. There are stars, meteoroids, and also the moon.
And not only that, we can also see various planets. They all revolve and evolve in their own orbits, around the same center.
What else do you want, bro? Humans are born with a mind, as well as an ego. Like it or not, we are always asking about the truth around us. Whether we realize it or not, we also continue to force ourselves to find out the answer. Why do we live? Where do we actually live? And how can we live? Everything feels like we should always know.
Our journey begins
Starting from the beginning, where the universe was formed. Surely you already know the picture of how the universe began from several theories. Here I am using the Big Bang Theory, which theorists think makes the most sense today.
After the big bang, 15 billion years ago to be exact, stars began to form, then gathered into clusters that we call galaxies. In each of these galaxies there are millions, even billions of solar systems in it, and one of them is where we are, namely the earth.
Earth is a special planet, the only place where life can exist. No other planet (as far as we know) is as strategically located as Earth to support life.
But did it just happen? Of course not. It's not that fast our beloved planet's journey to be able to have life on it.
Still billions of years ago, after all, after the formation of the universe, the Earth's surface was still very hot molten rock. Not only that, the surface as hot as it is also often bombarded by asteroids from outer space. In the past, the flood was not water, but a flood of asteroid debris.
If you can imagine it, of course it is absolutely impossible for living beings to exist in a world like this.
But calm down, everything then changed after another planet the size of Mars named Theia crashed into Earth. Earth is very good, even though both are destroyed, the earth does not ask for compensation or scold the planet Theia.
The debris of the earth and Theia continued to reunite and a new planet was created, namely the new earth. Not all the debris merged into the earth, some of it gathered into other, smaller forms. Can you guess? Yes, moon. Who is always there to accompany your lonely nights to this day.
The new earth and its contents are constantly changing. This change obviously didn't happen as fast as one ran a hundred meters. About 4 billion has been spent by the new earth to evolve into what it is today. This figure is obtained from the dating process or the oldest rock dating ever found.
Read Also: What Would Happen If the Moon Disappeared?
Then, like a taxonomy lesson in biology, the epoch that the earth traversed by scientists is divided into units. Each unit has several more periods in it. You need to know, this grouping is not done haphazardly, but based on major events that occur in each period. For example, the extinction of the dinosaurs in the Jurassic Age.
The first era, the name is Archean
The Archean Age is the oldest epoch on earth. Lasted about 2.5 billion years, at the same time making the Archean the longest epoch. In this era, because it was still in the formation stage after the collision with Theia, the earth was still in the form of a ball of extremely hot gas. Then slowly but surely, try to stay strong, move on, and finally calm down. Forget the past, face the present and be better. This cooling then triggers the formation of the earth's crust.
Uniquely, even though the earth is still very hot and unstable, the oldest fossils found in rocks are 3.7 billion years old. This fossil is a creature named Stromatolite, namely Cyanobacteria, a type of algae that lives in shallow water.
During its life, which is not accompanied by other creatures, the Stromatolite Wrinkles emoticon carries out photosynthesis. Through the results of this photosynthesis, finally oxygen on earth is more abundant. We as beings who have been able to enjoy the ups and downs of life up to now must be very grateful to Stromatolite.
That's my discussion of the Archean Age in this scientific writing about life. Oh yeah, even though it took a long time, nothing really can be explained at length at this point. Because life is still not fully formed and the earth is still in the stage of moving on.
For the next period or starting from the Paleozoic era, I will discuss each period in my next writing and the following is the order of time.