How The Planet Earth Was Created
The origin of the universe is a mystery that science will probably never be able to solve. How the planet Earth was created is just another guess, although the hypothesis we will present today seems to be correct.
Our amazing planet was born about 4.54 trillion years ago. Much has changed since the time when there were nothing but conglomerates of rocks and gases. High temperatures, high pressure and explosions… We will try to give you a simple explanation of how experts believe the planet Earth was created.
Most scientists believe that a huge explosion took place, known as the Big Bang, 13.8 trillion years ago. The explosion caused a large amount of mass to be launched in any direction. Over time, this mass came together and began to form suns, stars, planets and nebulae… which found together and created galaxies.
How the planet Earth was created
From the same cloud of stardust, the planet Earth and the sun took shape. First, the force of gravity caused the cloud to merge into small asteroids and, secondly, larger rocks.
When these larger rocks found and fused together, they became primitive planets. And, then, as if someone were playing with a cosmic game of marble, they began to bump into each other.
These collisions generated a large amount of energy. And, this energy, along with the elements that made up these primitive planets, caused a rise in temperature inside them, melting the rocks. Over time, the outer layers of the Earth began to cool down, though its core remained scorching hot.
The earth was located at just the right distance from the sun for this cooling to occur. However, the planet remained an uninhabitable and harsh place. It still lacked a gaseous atmosphere, and it was filled with rivers of lava that were the result of volcanic eruptions. However, this lava did nothing but contribute to an increase in the Earth’s crust.
As a result of these volcanic eruptions, the Earth’s surface released ancient gases that created the atmosphere. However, at this time, the atmosphere consisted of hydrogen, helium, methane, ammonium, noble gases, and some dispersed oxygen particles.
The formation of water on planet Earth
The incipient oxygen, together with atmospheric hydrogen, underwent optimal pressure and temperature conditions. As a result, they condensed into the precious water molecules that make life on our planet possible. In fact, to this day, life without the presence of water is unthinkable.
Land, sea and air struggled for a long time until they reached their proper place and began to settle in layers. A core of burning hot liquid, oceans, continental, outer crust and atmospheric gases… these form the formation of planet Earth. A unique example, a priori, due to the organization of its stratus.
The layers that make up planet Earth
The structure of the Earth is really what makes it so special. The unique formation of our planet has 4 layers with their substrates, with an interconnection between them all. These qualities make life on Earth possible. Furthermore, the planet itself is alive and in a state of constant transformation.
The geosphere
The geosphere is the layer that includes everything from the center of the Earth, the core, to the Earth’s crust. Radius of this sphere measures about 3660 km. It consists of several substrates. These include an inner core, an outer core, an upper mantle, asthenosphere, lithosphere, and the oceanic and continental crust.
The biosphere
The biosphere refers to the layers that host all the living beings that live on our planet. Rivers, gardens, mountains, lakes, deserts… We can find living beings underwater. At the same time, there are living beings that live up to 9.6 km above sea level.
The hydrosphere
The hydrosphere is the layer on Earth that connects the water above and below the continental crust. It includes gardens, lakes, rivers, oceans, polar ice sheets, water vapor and groundwater reservoirs.
This layer covers up to 70% of our planet, even though only 3% of this water is fresh water. The planet’s water goes through a constant cycle involving 3 stages: liquid, solid and gas.
The atmosphere
The atmosphere is a layer of gases that culminates in the formation of the planet Earth, which acts as a giant dome. It protects us from the sun’s rays and small asteroids.
Furthermore, it contributes to the perfect conditions for life, thanks to its oxygen-rich composition (21%). The exact percentage varies due to stratus and subdivides the atmosphere into substrates. These are the troposphere, stratosphere, mesosphere, ionosphere and exosphere. All these layers have, together, a radius of about 10,000 km.
