ORIGIN OF THE UNIVERSE
Over the years, cosmologists (astronomers that study the universe) have put forward a number of theories in an attempt to explain how the universe came to be. Two of these theories are the Big Bang Theory and The Steady State Theory.
BIG BANG THEORY
This theory is the effort of cosmologists to explain what happened at the very beginning of time and how the universe came to be. It is proposed that the universe began as a singularity, an infinitely hot, infinitely dense, infinitesimally small something. When this thing made an initial appearance, it threw matter in all directions, and as a whole, began to both expand and cool, to the sizes and temperatures we know today. Although, this is where many people get confused; some tend to take the name 'Big Bang' literally and imagine a giant explosion that created the whole universe, however cosmologists propose that it was, and still is, just an expansion process.
The reason they believe this is because of evidence put forward by the theory of the Red Shift.
STEADY STATE THEORY
The steady-state theory is a view that the universe is always expanding but maintaining a constant average density. It proposes that the universe has always just been here.
BIG BANG THEORY
This theory is the effort of cosmologists to explain what happened at the very beginning of time and how the universe came to be. It is proposed that the universe began as a singularity, an infinitely hot, infinitely dense, infinitesimally small something. When this thing made an initial appearance, it threw matter in all directions, and as a whole, began to both expand and cool, to the sizes and temperatures we know today. Although, this is where many people get confused; some tend to take the name 'Big Bang' literally and imagine a giant explosion that created the whole universe, however cosmologists propose that it was, and still is, just an expansion process.
The reason they believe this is because of evidence put forward by the theory of the Red Shift.
STEADY STATE THEORY
The steady-state theory is a view that the universe is always expanding but maintaining a constant average density. It proposes that the universe has always just been here.