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Rigorous Science Can stars that are not powered by nuclear fusion exist?

Stars generate their energy by fusing lighter elements into heavier elements. The most common reaction in Sun-like stars is the conversion of hydrogen to helium via the proton-proton chain, but hea...

16 answers  ·  posted 9y ago by HDE 226868‭  ·  last activity 7y ago by HDE 226868‭

Question astronomy stars energy