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The Question
(Submitted June 04, 2004)
How long until the sun becomes a red giant?
The Answer
The sun will become a red giant in about 5 billion years, which is
slightly more time than it has already been a star. There's a lot of
nice information about the sun at
http://www.nineplanets.org/sol.html
Hope that helps.
-Kevin and Dirk,
for "Ask a High Energy Astronomer"
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