A saffron colored ball high up on the sky catching the attention of everyone, soothing the eye and giving peace to the mind. The saffron ball is nothing but the sun. Sunset and sunrise are the most beautiful views which the nature has gifted to the lives on planet Earth. No one can deny the fact that the beauty of nature is mesmerising and the sun adds on to the charm of nature.it is worth admiring!
Ever since the Earth was born, the people are seeing the sun. In fact, the sun is there in the Universe long before the Earth and other planets were formed. Our day starts with the sun and ends with setting of the sun. Without the sun, survival was impossible. We see the sun every day, but ever wondered what the sun would look like from close? Does the sun also have a surface like the Earth? Would there be possibilities of life on the sun?
The sun which looks so small from the Earth is actually a big ball of fire. This big ball is made of nothing but gases. The most important gases among them are hydrogen and helium; the former being the most important one. The content of hydrogen in the sun is 73% and of helium is 25%. The remaining two per cent are the essential elements. Scientists have claimed the presence of around sixty elements on the sun.
The sun is mostly made up of gases. This fact about the sun brings out a serious question- is the surface of the sun soft or hard?
The sun is a very big star. The hydrogen gas present in the sun undergoes nuclear fusion reaction which leads to the release of helium gas. Nuclear reactions are exothermic in nature and thus it releases a large amount of heat energy. This is the reason for a very high temperature and pressure on the sun.
The surface of the sun is generally referred to as photosphere. But in actual, it is not the surface but the plasma over the surface of sun which is made up of penumbral filaments. This neon plasma layer, made of silicon plasma is like a liquid and it covers the actual surface of the sun. The actual surface of the sun is rocky and is composed of calcium ferrite. The hot gases on the sun boils and thus explosions occur which can throw the plasma up to miles with a speed ranging from 300 to 800 kilometres
per second! The throwing up of solar flares is called corona mass ejection.
The sun, therefore, is not fully hard nor is it completely soft. The density of the sun increases with the increase in depth. Moreover, there are also magnetic forces on the surface of sun. The inner area of the sun is hard with a very high pressure and temperature. But when we look at the top layer of the sun, it is nothing but plasma where hot gases keep reacting and releases heat.
Thus, the sun, which is the source of light and life on Earth, is neither just a hard mass of substance nor a lump of some soft material covered with fire! It is thus a ball of fire which is soft and hard at the same time!