Essay Archive - Big Bang Theory
Big Bang Theory
It is always a mystery about how the universe began, whether if and
when it will end. Astronomers construct hypotheses called cosmological
models that try to find the answer. There are two types of models: Big
Bang and Steady State. However, through many observational evidences, the
Big Bang theory can best explain the creation of the universe.
The Big Bang model postulates that about 15 to 20 billion years ago,
the universe violently exploded into being, in an event called the Big
Bang. Before the Big Bang, all of the matter and radiation of our pres....