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| How the Earth was formed? |
Earth is not a thing in the
universe that presented itself was in perfect shape. Earth formed through a
long process and continue to grow to form today.
Scientists argue that the
process has been started since the formation of the Earth billions of years
ago. Planet Earth originated from a giant cloud in space that is always
spinning. The giant cloud will form balls attractive dust grains and gas. Balls
of dust and gas is the origin of the Earth, the planets, as well as other
months.
When the greater gravity, gas
and dust will be compressed and increasingly dense. This causes the Earth is
getting hotter and becomes incandescent bulb. The outside of the Earth slowly
began to cool and harden. But Earth is not cool at all. The central part of the
Earth is very hot. The process of the formation of the Earth above is similar
to the Kant-Laplace opinion that suggests that the Earth began to form over
billions of years ago when released from the sun in the form of hot gas, which
gradually cooled and formed a crust rocks.
Although many theories or
opinions of scientists about the formation of Earth, but nobody really - really
know exactly how and when the earth was formed. Yes, a challenge for the
scientific world that someday you can solve. The process of development of the
planet Earth from time to time can not be separated from the history of the
formation of the solar system. This is because the Earth is one of the family
members of the Sun, in addition to other planets, comets, asteroids, and
meteors.
The following are the findings of scientists.
In the
beginning, the universe was very hot and all objects inside each thrust.
Then
about 10 or 15 billion years ago,
the universe began to expand and cool.
Dust
and other particles scattered in the space.
Scientists call this process
"The Big Bang".
Some of the
particles from sticking together and forming stars and groups of stars called
galaxies.
Our sun is one of these stars.
A flat clouds composed of dust and gas
began to move around the sun.
Then, about 4600 million years ago, the cloud was
dispersed to form clots.
These clumps into eight major planets, including
Earth.