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Space

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.

Specials

Comets
The Christmas Star and Angel compete for the most important position above the top beam of the Christmas shed...

2009: an important year
2009 is a very important year for science...

Read all the Special Reports

More info

Children of the stars
We are made of star dust. The iron in our blood, the oxygen we breathe...

The Olbers paradox
Why is the sky dark at night? What seems like an obvious question...

Read all the Curiosities

Related topics

Energy
Heavy water reactors
The fuel of heavy water reactors is made of non-enriched...
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Energy
Electronuclear plants
A nuclear power plant allows the production of steam without using...
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multimedia


Space/Photos
Supernova

Space/Photos
A star mass

Space/Graphs and Tables
Black hole

Space/Graphs and Tables
Gravity and pressure