Birth of a star
In the interstellar space there is a large amount of Nebula Police Stop they are connected at a point due to its Gravity by which pressure and temperature of the core increases which is called Protostar when temperature becomes 10 to the power 7 k at crore, nuclear fusion occurs and radiate energy from its surface does the star is born.
Death of a star
after the billion Sophia, hydrogen present in the start decreases due to conversion in Helium. So, temperature of star decreases. When core of star contracts, again temperature increases and surface of Star gets expanded excessively and seemes red colour later, the start explodes and die
Tags
Science