The enigma of stars older than the Universe seems solved

The more massive the stars evolve, and vice versa. The theory which explains this fact also makes it possible to date them, but it led to give an age clearly higher than that of the observable Universe in the case of certain stars. The solution to this riddle involves a scenario that has just passed successfully tests.

The pioneers ofastrophysics du XXe century are at the origin of a theory of the stellar structure already well developed before the second world war. She was refined by advances in nuclear astrophysics after this war and with the rise in power of computers and methods of analysis digital. Finally, it allows us to think about and describe the evolution of stars. This will depend in the first place on their masses.

The calculations then make it possible to estimate how long it takes for a star to become a white dwarf or turn into
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