The Sun is the closest star to the Earth. Many stars are bigger than the Sun. Stars have different colours, depending on how hot they are. Each star lives for billions of years. A group of stars that makes a pattern in the sky are called a constellation.
People can see different constellations depending on where they are in the world.
People use a telescope to study the stars and their constellations. The Southern Cross is the smallest constellation, but it has some of the brightest stars in the sky. A galaxy is a large group of stars, gas and dust in space. The Sun, Earth and stars that you can see without a telescope, belong to the galaxy called the Milky Way. Stars begin inside a nebula which is a dark cloud of gas and dust.