Introduction
Stars
Fascinating and gigantic balls of incandescent gas suspended in an empty space, that shine with their own light. We all know the stars. Even in the sky over our cities, so greatly penalized by light pollution, we are able to see some. At times we are even able to identify some depending on the difference in colour and intensity. Did you know that we are made of stardust? The iron in our blood, the oxygen that we breathe, the calcium in our bones, all the atoms we are made of, were created in the stars billions of years ago, just like all the other elements that are present on our planet.
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