The Genesis and Demise of Celestial Stars: A Cosmic Journey
Stars have a life cycle that mimics the human life cycle, as they go through their lives in childhood, youth, aging and death [1] . Stars are born from the accumulation of hydrogen atoms in the intergalactic cosmic nebula, which is a cosmic dust consisting mainly of hydrogen and a little percentage of helium atoms. Hydrogen atoms accumulate in the nebula under the effect of their own mass gravity, which increases over time until a certain threshold leading to a rise in hydrogen temperature that permits the accumulated hydrogen to start nuclear fusion reactions. The nuclear fusion of hydrogen in the cosmic nebulae leads to the birth of stars. This fusion is the source of the enormous heat that these stars, including our sun radiate. We could thus consider our sun as an enormous nuclear reactor that produces energy, leaving helium as a by-product of the ongoing nuclear reactions. Helium resulting from the reaction gradually accumulates in the nucleus of the ...