Saturday, April 26, 2008

The Sun

Sun - Corona

sun, astronomy

Credit: from the High Altitude Observatory Mauna Loa Solar Observatory (Hawaii)

White-light Mk. 4 coronameter images

Normally we say that the sun consist of gas. It is in fact more specifically plasma - A fourth state of matter (in addition to solid, liquid, and gas) that exists in space. In this state, atoms are positively charged and share space with free negatively charged electrons.

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