What are stars? What is the Sun? How stars are formed?

Stars are large, bright objects in space that produce their own light and heat.

The Sun is the closest star to Earth and is the center of our solar system.

Stars are formed when clouds of gas and dust collapse under their own gravity and heat up to the point of nuclear fusion.

Examples of stars include the Sun, Sirius, Procyon, and Rigel.

Stars come in a variety of colors, sizes, and temperatures depending on their age and composition.

Stars live for different lengths of time depending on their mass.

Stars can also form in pairs, called binary stars, or in groups, called star clusters.

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