The Big Bang
The Big Bang
My people wonder about how the universe began, what is going to happen, and when it is going to end. Astronomers construct hypotheses called cosmological models that try to find the answer. Currently, the Big Bang theory can best explain the creation of the universe. The Big Bang model suggests that about 14 billion years ago, the universe violently exploded, hence why it is called the Big Bang (Chaisson 448). Before the Big Bang, all of the matter and radiation in our universe were packed together. The Big Bang is marked as the beginning of time and space. The matter and radiation of that early stage rapidly expanded and cooled. Several million years later, it condensed into galaxies. The universe has continued to expand, and the galaxies have continued moving away from each other ever since.
In 1927, a priest by the name of Georges Lemaître suggested that the universe started by some sort of explosion. He suggested this idea after noticing the red shift in......
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