If you look up at the sky on a clear night, it is filled with thousands of twinkling points of light that we call stars. Between 2000 and 4000 are visible to the naked eye, but these are just a few compared to the many billions that exist. There are more stars in the Universe than there are grains of sand on every beach in the world.
All of the stars that we can see belong to our own galaxy, the Milky Way. This is just one of many millions of galaxies that make up the Universe.
Click on the links below to find out more about stars.
Authors: Carolyn Brinkworth and Claire Thomas
Last updated: July 2001