Solar System Formation

Our sun is the central point around the planet and solar system. Without it, every life on our planet will cease to exist. In this article we will explore how the sun and the solar system were formed and resembled what we see today. Big Bang was the existence of a star building block that occurred about one billion years ago. Elements produced by the Big Bang, like trace amounts of lithium, consist of hydrogen and helium. Hydrogen and helium are basic structures that make up stars.

The solar system formation It is thought that the solar system is based on the nebula hypothesis that it was formed by the gravitational collapse of macromolecular clouds over several light years ago 6 billion years ago. When gravity acts on a contracted cloud it begins to turn into a rotating disk about 200 feet in diameter and the center begins to form hot and dense primitive stars. After 100 million years, the pressure and density of the hydrogen at the center of the collapsed nebula became large enough, the young sun began receiving thermonuclear fusion and eventually became a perfect star.

About 4.5 billion years ago, when the solar system was formed, there were no human beings, so the understanding of our birth came from several sources: more investigation of rocks in the earth and elsewhere As information comes out, some of our solar system theories must change to accommodate new evidence. Today, scientists believe that the solar system starts with rotating clouds of gas and dust. The center of gravity attracts the last collapse to shape the sun. Several theories suggest that younger sun's energy begins to push lighter gas particles while larger, stronger particles such as dust are still closer

The comet consists of almost primitive material formed in the early days of our solar system and is not exposed to strong sunlight. Examining the chemical composition of these "dirty snowballs" gives clues about the composition and properties of the early solar system, limiting the theory that life forms on the earth. Billions of years ago, when our Milky Way was formed, it was thought that the era of fast star formation faded. You can get clues by observing the galaxies currently showing violence and extreme stars. This "starburst" galaxy is best studied at infrared and radio wave wavelengths. Because a star formed by a star usually contains a lot of dust and gas and visible light can not pass through the center of most of the stars. Below is the infrared (wavelength 2.0 - 2.5 micron, or 20,000 - 25,000 angstrom) spectrum of such two starburst galaxies.