During the night, the blue sky is seen to meet the number of dots of light. We call them stars or stars. Though it is like the point of view, but some star masses are more than three times the sun. However, now we will get some information about the stars which are unknown to many of us. Originally the star is a flaming firepipe that consists of gas and dust. Scientists believe that they were created by a major explosion. At the beginning of the creation of these stars, there were cooler hydrogen, helium and other atoms, and they were dust-colored across the vast space of space. About 75% of the dust was hydrogen, 24% helium and carbon, nitrogen, oxygen and other gas were 1%. However, these stars and deaths happen. We know that power is needed to drive each object. And we need to eat food for these power supplies, petrol, diesel etc. in mechanical machine. Similarly, hydrogen provides the power of the stars. The star has two parts. The core part or the inner part of which is called the core and the other is the outer part. While the temperature of the inner part is more than one million degrees Celsius, the external temperature is only a few thousand degrees Celsius. Fusion reaction does not occur because the outside temperature is low. When the inner part of the fusion reaction ends, the outer pressure of outer pressure decreases and the contraction increases due to the gravitational attraction force. That is, the attraction force gets a good reputation and the curse contraction continues.

![sun-fusion.jpg](https://steemitimages.com/DQmUBVbYYkxHWMuUpux9GJG7M2fjRGctiHqxZvw3eNmXGYd/sun-fusion.jpg)

Due to the decreasing amount of hydrogen fuel, the concentration and temperature of the main part of the constellation increases and the expansion of the outer area increases. However, the temperature of the main body does not increase. Due to the decreasing temperature outside the star, the radiation emitted from the surface turns reddish, which is called a bloody giant. Slowly the outer cover breaks down, which is called white dwarf. The white dwarf star turns out to decrease the brightness once the black becomes a dwarf and death.

But the stars that have a lot of mass, when hydrogen fuels decrease, the contractions are much higher and the temperature increases a lot. In this case, the temperature reaches around 10 million degrees Celsius and fusion reaction begins in the helium nucleus. Then three helium nuclei fusion forms the carbon nucleus and releases a lot of energy. The pressure inside the cores increases and spreads and expands in the outer coat. The star is also bright. The temperature of the outside region decreases once and the star becomes red. In this situation, the star is called the Raktimi giant or the very giant monster star. When the sun comes to the end of the hydrogen fuel, then the size of the sun will grow so much that it will also consume Mercury, Venus, Earth and Mars. According to the scientists, the situation is still 600 million years late.