How We Came To Be

By kelley.c
  • 14,000 BCE

    The Big Bang

    The Big Bang
    The Big Bang also called "The Beginning of Everything" is considered as the common theory of how the universe came to be. It was when space quickly expanded and stretched in all directions at once. The Big Bang created atoms like protons and neutrons and was the start of how we came to be.
  • 4600 BCE

    Birth of the Sun

    Birth of the Sun
    About 4.6 billion years ago, the universe was thought to be only a cloud of gas. Then a star nearby exploded and caused a shock wave. The effect of the shock wave resulted in a ripple that caused the surrounding gas to collapse and the creation of the sun.
  • 4540 BCE

    Earth's Core Formation

    Like other planets, the earth formed when different objects in space collided and combined with each other. Earth originally was mainly molten because of all the collisions earth faced. But then denser materials were pulled into the center of the earth and elements that were light rose to the surface. Gravity was the reason behind the formation of the earth's core.
  • 4500 BCE

    Formation of the Moon

    Formation of the Moon
    An object the size of a small planet crashed into the side of the earth. The object bounced back from the earth and stayed in the earth's orbit. Then, the object became hot molten after it's giant impact on the earth. The object that slowly cooled into the shape of a sphere and became what we call the moon.
  • 4500 BCE

    Late Accretion

    Late Accretion
    This event is best described as the final stage of all the planet's formation. Certain objects and elements were crashing into other planets and are the reason why scientists believe to be the reason why we find elements like metal when mining.
  • 4500 BCE

    Primary Planetary Accretion

    Primary Planetary Accretion
    The beginning of the creation of planets occurred 100,000 years after the birth of the sun. Dust began to collide with each other and then small clusters of compacted dust were created. For 10 million years, more dust cont continued to make contact with the clusters. And over time, the once small clumps accreted and grew and grew in size.
  • 4000 BCE

    Earth's Core Cools

    The moon's impact on earth left the earth a sphere of magma. However, the earth gradually cooled itself after releasing its heat. When it's heat began to escape, continents were created. Lava became rock and oceans were formed.
  • 3800 BCE

    End of Heavy Bombardment

    End of Heavy Bombardment
    There is belief that planets like Jupiter and Saturn moved around towards other planets and cleared the debris before migrating back to their original positions. Apparently, during that time, objects that carried water made contact with the earth and that is the reason why we have water on earth.