It has been a fundamental question since the beginning of time. We humans have always wondered how this world came to be. It is in our nature to try to understand the vastness around us, what, or who, created us, and endless more questions with no answers. Scientists are still trying to understand how the Universe was born. The prevailing theory of the creation of the universe is called the Big Bang, defined as “Theory of the creation of the universe first introduced by George Gamow in the 1940s where the universe started as very small, dense, and hot about 15 billion years ago and then expanded into our modern day universe and continues to expand today.” (Read, n. d. ).
In ancient times, it was believed the universe had to
…show more content…
After the measurements of Vesto Slipher of the Doppler shift of some galaxies, Hubble worked with his assistant, Milton Humason, to keep measuring the distance and Doppler shifts of different galaxies. According to Soter and DeGrasee Tyson (2001), “ In 1929, Edwin Hubble showed that the light from distant galaxies is shifted to longer wavelengths in proportion to their distances from the Milky Way.”, meaning the galaxies that are farther away from us are nearing the speed of light. Thanks to Hubble’s discovery of the acceleration of the universe, scientists have determined that the age of the universe is 13.7 billion years old.
As with many theories, the Big Bang Theory has been disputed many times. As science keeps getting better, the instruments used in research also improve. With these new technologies, the Big Bang theory is being widely accepted as new evidence keeps flowing in. George Gamow, Ralph Alpher, and Robert Herman worked on a detailed picture of the Big Bang, soon realizing that immediately after the explosion the universe would have been incredibly dense and extremely hot. This period is called the radiation era because at those temperatures the majority of the universe existed in the form of