5-7 sentences that describe the life cycle of a star

The mass decides the life cycle of a star whereas the central sequence star shines, hydrogen in its core is turned into helium by nuclear fusion.
Meanwhile, the hydrogen supply in the core begins to run out, and the star is no longer producing heat by nuclear fusion, the core enhances unstable and contracts.
The stars are grown in clouds of vapor and dust which are identified as Nebulae.
The nuclear reactions toward the center of stars produce sufficient energy to get them to shine brightly for several years.
Sun is the nearest star to the earth.
Numerous stars are visible to the bared eye from Earth through the night, resembling twinkling dots due to their enormous distance from the Earth.

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