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Elements of ExoPlanets

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A star's energy comes from the combining of light elements into heavier elements in a process known as fusion. Our Sun is currently burning, or fusing, hydrogen to helium. After the hydrogen in the star's core is exhausted, the star can burn helium to form progressively heavier elements, carbon and oxygen and so on, until iron and nickel are formed. Supernova explosions result when the cores of massive stars have exhausted their fuel supplies and burned everything into iron and nickel. Image Credit: NASA

Summary: By looking at the wavelengths of light from nearby stars, researchers have determined the abundance of certain elements for more than a hundred stars. Trace elements in such stars may influence their habitable zones, where planets with life might dwell….
Read more:astrobio.net

Written by physicsgg

February 2, 2012 at 6:48 pm

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  1. […] Elements of ExoPlanets « physics4me. Share this:TwitterFacebookLike this:LikeBe the first to like this post. This entry was posted in Nature / Φύση and tagged πλανήτες, ήλιος, planet, star, sun. Bookmark the permalink. […]


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