Earth 4.6 Billion Years Ago
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Earth 4.6 Billion Years Ago

Earth, our little blue planet, didn't start as we know it. It didn't just pop out of the void, and then enter Merlin the magician and shazam, there's life!

In order to appreciate the real story, we should hear it from the very beginning. Earth, our little blue planet, didn't start as we know it. It didn't just pop out of the void, and then enter Merlin the magician and shazam, there's life!

Perhaps if we only knew what Earth went through those billions of years in the past, we could be more considerate while living in it.

The Beginning

The primordial Sun began contracting from clouds of hot gas and dust in the densest region of this spiral nebula. The first outer planets condensed from ice particles that were too far from the sun, while the inner planets accreted from silicates and metals. Earth's formation took place after the sun, an enormous cloud of hot contracting gas, reached its present size. It had burned up enough hydrogen to helium in a process called nuclear fusion that it could not expand any further.

Planetesimals (asteroids and heavenly bodies smaller than planets) and dusts from the solar nebula gravitated together to form a massive rock, which will soon be known as Earth.

After millions of years, our precious earth was born.

Big Rock

However, Earth at that time was nothing but just a big chunk of rock. The earliest volcanoes had formed from hot gasses trapped inside earth during the accretion of planetesimals. Soon, these gasses will condense to fill in oceans. For the next millions of years, Earth's primitive atmosphere was ravaged by harsh solar wind and asteroids.

The Moon

Some 4.5 billion years ago, a planetary body thrice the size of Mars hit Earth. Much later, the torn chunks of rocks gravitated to form our moon. In the meantime, Earth's core heated up, and as it did, it melted the exterior crust into a global ocean of magma.

Plate Tectonics

About 300 million years later, the ocean of gushing magma cooled down and subsided. Then plate tectonics sets in to form the earliest continent. Lesser meteorites impacted earth by the dawn of the Archean Eon, the first largest division of geologic time.

Studying how this little blue planet came to be should help us understand and appreciate the nature that we have now. Either it was a great coincidence, or there was some higher power that set things in motion, well, we couldn't tell for sure. The only thing we know is that Earth didn't just magically create itself. It took billions of years, and those billions of years are on us.

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