Tuesday, October 2, 2012

What are Stars?

    
      A star is a self-luminous object that shines through the release of energy produced by nuclear reactions at its core.

     A star is also a body of matter in space that's held together by its own gravity. Stars constantly undergo nuclear reactions that emit heat & light. Although they share these things in common, they can vary in size, age, brightness, temperature & color.

     And lastly, the definition of a star is simply a huge ball of gas, with a central core that is very hot and produces lots of energy. A star is held together by gravity.

   A star is also a natural luminous body visible in the sky especially at night.



   

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