How Did The Big Bang Theory Contribute To The Expansion Of The Universe

The Big Bang theory is a theory scientists use to explain the creation of the universe. According to this theory, the universe was concentrated into a single point 13.7 billion years ago. This theory states that the universe started as a singularity. Time began when this single point exploded causing the expansion of the universe. This expansion formed matter, energy, space, and time. In 1915, Albert Einstein applied his theory of General Relativity to how the universe began. General Relativity describes gravity as a curved space-time. Einstein believed thats there had to be a force to balance gravity because a universe with only gravity would collapse. Einstein called this force a cosmological constant and assumed thats it balanced gravity to maintain what he believed was a static universe. George LeMaitre in 1927 and Alexander Friedmann in 1922 discovered a variety of answers to Einstein's General Relativity that described instead of a static but a constantly expanding universe. In 1929, Edwin Hubble discovered that all matter in the universe is moving away from all other matter. This proved that the universe is expanding. Hubble came to this conclusion by observing the light coming …show more content…
In 1963, Arno Penzias and Robert Wilson worked for Bell Telephone Labs in New Jersey setting up a radio transmitter, but they kept hearing static. They thought it was an interference caused by pigeon droppings, but Penzias and Wilson realized that the noise was a signal. Robert Dicke and Dave Wilkinson at Princeton University were looking for a way to detect radiation that was possibly left behind from the Big Bang. The radiation Penzias and Wilson detected matched perfectly for what Dicke and Wilkinson were looking for. This cosmic radiation led scientists to theorize that the Big Bang theory is correct because the universe is filled with background radiation left