The Sun is the star at the center of our solar system. It is a nearly perfect sphere of hot plasma, primarily composed of hydrogen and helium. The Sun's gravity holds the solar system together, and its intense heat and light provide the energy that sustains life on Earth. It is located about 93 million miles (150 million kilometers) away from Earth.
The Sun undergoes nuclear fusion in its core, where hydrogen atoms are fused together to form helium, releasing an immense amount of energy in the process. This energy is radiated into space as light and heat. The Sun's temperature at its core is around 15 million degrees Celsius (27 million degrees Fahrenheit).
The Sun plays a crucial role in the solar system's dynamics, influencing the orbits and movements of planets and other celestial bodies. It is a G-type main-sequence star (G dwarf star) and is about 4.6 billion years old, roughly halfway through its estimated 10-billion-year lifecycle.
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