Tag Archives: Stars

What is a star?

A star is a big ball of gas. It is not star-shaped. Stars give off heat and light.

Stars are born in nebulas. Nebulas are clouds in space. They are made of gases and dust.


A star’s colour tells us how hot or cold it is. The bluish stars are the hottest ones. The reddish stars are the coolest. But they are still very hot!

Credit: NASA