Essay

While we live on this planet we think that Earth is a giant place. But when you look at the vastness of our universe the plant Earth is similar to the size of dust on this planet. There are planets bigger and smaller, stars, black holes, asteroids and many other objects in this universe. Through this article we will be telling you about the formation of the universe and the objects in it. Also, I will be telling you how motion affected these objects. We will telling you what four brilliant scientist (Copernicus’, Kepler, Galileo, and Newton) found out about the motion of the Sun, Earth, the Moon and other objects within our universe.

The formation of the bodies that comprise our solar system has been best explained thus far by the nebula hypothesis. According to the nebula hypothesis, a huge, rotating cloud of cosmic gas which contained both lighter elements, (e.g., hydrogen and helium, which are found in the sun), as well as heavier elements, (e.g., carbon and iron, originating in the stars), were compressed, perhaps as a result of the explosion of a supernova. While gravity pulled the gas together, the temperature of the cloud increased and the hydrogen atoms were compressed. With the contraction of the cloud, it began to rotate at an increasing rate, creating a bulge in the center surrounded by a wide disc. In addition, following the increase in temperature, nuclear fusion began at the center of the cloud, in what would become our shining sun. In the outer regions of the cloud’s disc, cooler temperatures allowed the gas particles to condense and solidify and, over the course of the next few tens of millions of years, the solid debris was largely collected into the planets of the solar system. The dense, rocky, terrestrial planets which orbit closer to the sun owe their composition and conditions to the fact that only the elements which make up rock would have been able to condense within that proximity (and therefore that temperature) to the sun. The...