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In which year, does the fact: every star will ultimately die came in to existence?

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    $\begingroup$ Probably before the present meaning of "death of a star" came into existence, which probably makes this an ill-formed question as presently worded. For example, the ancient Babylonians worshiped stars as gods and presumably (I haven't looked into this) these gods could die, so would the ancient Babylonians be a possible answer to your question? $\endgroup$ Mar 31, 2021 at 11:42
  • $\begingroup$ @DaveLRenfro Yeah, although their terminology or approach is different, they are stating a fact only... So it can be a possible answer... $\endgroup$
    – hanugm
    Mar 31, 2021 at 15:23
  • $\begingroup$ In more modern times, before the nucleosynthesis was discovered, the prime candidate for the energy source of stars was the Kelvin–Helmholtz mechanism of gravitational contraction, which implied that every star will die, and that the Sun should have died long ago (when the age of Earth was estimated). Even before that heat death of the universe was already derived from the second law. $\endgroup$
    – Conifold
    Mar 31, 2021 at 21:50
  • $\begingroup$ @hanugm Stars never die because they never live. Speaking about the lives of stars is using a metaphor. $\endgroup$ Apr 1, 2021 at 1:18
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    $\begingroup$ @M.A.Golding Death here means falling away... $\endgroup$
    – hanugm
    Apr 1, 2021 at 12:31

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