What is the sun?

The sun is a star at the center of our solar system. It is a massive ball of hot plasma that generates light and heat through nuclear fusion reactions in its core. The sun provides the energy that sustains life on Earth and is essential for the planet's climate and weather systems.

The Sun is a star, a hot ball of glowing gases at the centre of our solar system. Its diameter is about 109 times that of the Earth, and it has a mass about 330,000 times that of the Earth. The Sun is about 4.6 billion years old and is powered by nuclear fusion reactions that take place in its core.