The Sun

The sun warms our planet every day, provides the light by which we see and is necessary for life on Earth. Learn about the sun.

The sun is the most powerful thing in our solar system. It generates heat and life that sustains us. But the sun is volatile and dangerous.

Our Sun is powered by nuclear fusion, where atomic nuclei join together. This joining results in the production of heat and light, as not all is conserved.

“…it is reasonable to hope that in the not too distant future we shall be competent to understand so simple a thing as a star.” –Arthur Eddington, 1926 (For Mike H., who wanted to know.) The Sun — like nearly all stars — burns bright through its nuclear reactions, sending light, heat and energy out…

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The Sun is a giant ball of burning hot gasses, millions of degrees at its core! The sun is a star (yes, really!) that provides the heat and energy that life ...

The Sun (or Sol), is the star at the centre of our solar system and is responsible for the Earth’s climate and weather. The Sun is an almost perfect sphere with a difference of just 10km in diameter between the poles and the equator.

Read about the history and future of Earth’s sun as well as fun facts about the sun’s age, size, temperature, and phenomena like solar flares.

The sun at the heart of our solar system is a yellow dwarf star, a hot ball of glowing gases. Its gravity holds the solar system together, keeping everything from the biggest planets to the smallest particles of debris in its orbit.

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