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Name: John
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Date: 1993 - 1999


Question:
Where does the sun get its fuel?


Replies:
The sun runs on hydrogen, which is what it is made of - it is very gradually consuming itself! Because the fusion reactions it uses create so much energy, the sun will continue to shine for a long time - probably another 5 billion years. The fusion (converting hydrogen into helium) occurs only in the v ery deepest part of the sun, which is extremely hot (millions of degrees), and this heat gradually filters out to the outer layers which are only a few thousand degrees, and this heat is then radiated into space as light.

A Smith



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