The Big Bang

1449 Words6 Pages
The universe is a magnificent place. There are thought to be more than 100 billion galaxies, each, with 100 billion stars (Hawking 48). There are vast clouds of gas, light years across, each taking on its own dazzling shape and color. In our solar system alone, there are planets asteroids, comets and moons. For millennia, humans have attributed the workings and beauty of the cosmos to the divine. Slowly, we learned that laws governed the motion of these celestial bodies, laws which would come to be known as the laws of physics. It was not a god that was making the planets orbit the sun, but gravity. Through observations, mankind learned of new laws, and discarded old ones that no longer matched the observations. Eventually, a prediction was made as to the very origins of the universe, the Big Bang. This elegant theory proposed that the universe as we know it today, expanded out from a very small, very dense point. All the matter and energy in the universe came from that one point. The amount of proof for the Big Bang theory such as cosmic expansion, the microwave background radiation, gravitational waves and quantum foam make this theory almost irrefutable, despite the amount of pushback it has received from religious groups. In 1929, a well known scientist named Edwin Hubble made a discovery that eventually lead to the Big Bang theory (Hawking 52). While charting the movement of galaxies, he found that galaxies were moving away from us. This suggested that the universe was expanding. He was able to find that galaxies were moving away due to a phenomena known as Doppler shift. If a galaxy is moving away from us, its light will appear more red. If an galaxy emitting light is stationary, the light an observer would see would be ... ... middle of paper ... ...ay 2014. . Lincoln, Don. "Quantum Foam, Virtual Particles and Other Curiosities." PBS. PBS, n.d. Web. 26 May 2014. . Swidey, Neil. "Alan Guth: What Made the Big Bang Bang - The Boston Globe." N.p., n.d. Web. 26 May 2014. . Tegmark, Max. Our Mathematical Universe: My Quest for the Ultimate Nature of Reality. N.p.: n.p., n.d. Print. "Unification, Spacetime Foam, Quantum Vacuum, Quantum Fluctuations."Unification, Spacetime Foam, Quantum Vacuum, Quantum Fluctuations. N.p., n.d. Web. 26 May 2014. .

More about The Big Bang

Open Document