The Big Bang

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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…show more content…
When infrared radiation becomes redshifted, it appears to be microwaves, which have even longer wavelengths than infrared radiation. At around the same time Dicke and Peebles were making this prediction, in 1965, two physicists at the Bell Telephone Laboratories in New Jersey, Arno Penzias and Robert Wilson, were receiving a lot of microwave interference with their equipment (Hawking 55). They had a very sensitive microwave detector, and were receiving this interference no matter where they pointed the detector. They eventually concluded that the interference was everywhere, and from outside the atmosphere, and extremely uniform. It was the same no matter what time of day, or year. This meant the microwaves they were detecting were originating from outside of the solar system, and even the galaxy (Hawking 55). It was eventually realized that this microwave background was the same that Dicke, Peeples, and Gamow had predicted. Penzias and Wilson had found the “glow” of the Big Bang. In 1992, COBE (Cosmic Background Explorer satellite) was able to find slight variations in the microwave background. This meant that the early universe was not completely even, allowing matter to clump together and structures to form such as galaxies (Hawking 56). The amount of evidence for the Big Bang was rising, and it was starting to seem like an extremely probable theory. It was predicted that when the universe first started to expand in the Big Bang, there were small

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