The Sun is currently in the main sequence stage, where it fuses hydrogen into helium in its core.

The Sun's energy is generated through nuclear fusion reactions, where hydrogen atoms are combined to form helium.

The Sun is expected to remain in the main sequence stage for approximately 10 billion years.

After exhausting its hydrogen fuel, the Sun will expand and become a red giant.

The core of the Sun will eventually collapse under its own gravity, forming a white dwarf.

White dwarfs are primarily composed of carbon and oxygen.

The Chandrasekhar Limit is the maximum mass a white dwarf can have before it collapses under its own gravity and becomes a neutron star.

A white dwarf can explode as a supernova if it accretes mass from a companion star, exceeding the Chandrasekhar Limit.

A supernova explosion can leave behind a neutron star, which is a collapsed core of a massive star.

The Sun's luminosity is primarily generated through nuclear fusion reactions in its core.

The gradual increase in the Sun's luminosity over time is known as solar luminosity variation.

The Sun is estimated to be approximately 4.6 billion years old.

The mass of a star is the primary factor that determines its lifespan.

The Sun converts hydrogen into helium through a process called nuclear fusion.

In the red giant stage, the Sun will expand and potentially engulf the inner planets.