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What does the Sun burn?

Author:      patricia a marengo
Why does the Sun burn if there is no oxygen in space?

Response #:  1 of 1
Author:      hawley
The Sun 'burns' nuclear fuel that does not need oxygen.  Nuclear energy
comes in two forms:  fission in which heavy elements are broken down into
lighter ones; and fusion in which light elements are 'fused' together to
make heavier elements.  Stars 'burn' by nuclear fusion.

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