The traditional theory of the formation of our galaxy cannot explain

Question

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According to the traditional theory, the oldest stars in the galaxy should be metal-free, but observations show that they contain some metals. This cannot be explained by the traditional theory. The traditional theory of galaxy formation posits that the oldest stars in a galaxy should be metal-free, but observations have shown that the oldest stars in our galaxy, as well as other galaxies, have some metal content. This is known as the "metallicity problem" and is still not fully understood by astronomers.

The Traditional Theory of the Formation of Our Galaxy Cannot