The Expansion of the Universe
Today, in the 21st Century, many have accepted the conclusion that the beginning of the universe can be explained through the Big Bang Theory. This theory, beyond reasonable doubt, has been proven with discovery upon discovery by scientists, physicists and astronomers. Opposing theories, a major one being religion, have testified their cases to disprove the Big Bang Theory. Yet, our extraordinary universe has revealed to researcher that there was a time before the universe, as scientists are almost certain about. The phenomenon, Hubble’s Law, supports the expansion of the universe. Debates to prove whether this theory should be accepted or not remains ongoing.
The existence of a period before the universe is key to the Big Bang Theory’s validity, and scientists have showed great promise and certainty with proof to this. Arguably the most remarkable discovery of our universe, it was born approximately 15 billion years ago, and ultimately started the clock for time. People have argued that the theory is correct, as it would greatly conflict with the ‘Second Law of Thermodynamics’, (“Over time, differences in temperature, pressure, and density tend to even out.”) had the universe existed forever. It can be seen that it conflicts, because there is no such thing as an ‘infinitely dense’ object or perhaps an exertion of ‘infinite pressure’. Since it can be proven that the universe has not existed forever, then it must be concluded that there was a birth of time and space.
Hubble’s Law, concerning the directional movement of galaxies, further proves the expansion of the universe. It is said that the universe may well be “expanding” still at an enormous rate, and observations have shown this to be true. This is in agreement with the Big Bang Theory as an expansion means there was a starting point and time for the universe. Through the Doppler Shift effect, galaxies have been observed to be in ‘redshift’ when viewed from Earth, meaning they are moving away from us.
The existence of a period before the universe is key to the Big Bang Theory’s validity, and scientists have showed great promise and certainty with proof to this. Arguably the most remarkable discovery of our universe, it was born approximately 15 billion years ago, and ultimately started the clock for time. People have argued that the theory is correct, as it would greatly conflict with the ‘Second Law of Thermodynamics’, (“Over time, differences in temperature, pressure, and density tend to even out.”) had the universe existed forever. It can be seen that it conflicts, because there is no such thing as an ‘infinitely dense’ object or perhaps an exertion of ‘infinite pressure’. Since it can be proven that the universe has not existed forever, then it must be concluded that there was a birth of time and space.
Hubble’s Law, concerning the directional movement of galaxies, further proves the expansion of the universe. It is said that the universe may well be “expanding” still at an enormous rate, and observations have shown this to be true. This is in agreement with the Big Bang Theory as an expansion means there was a starting point and time for the universe. Through the Doppler Shift effect, galaxies have been observed to be in ‘redshift’ when viewed from Earth, meaning they are moving away from us.