The night sky: are the stars we see really dead already?

A popular idea about the night sky is that many of the stars we see no longer exist. Is this true?

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Are Dead Stars Visible In The Night Sky? » Science ABC

Bad Astronomy Are the Stars You See in the Sky Already Dead

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The stars we see in the night sky are only remenats of dead ones

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Are Any Stars Visible In The Night Sky Already Dead?

Are many visible stars dead? - BBC Science Focus Magazine

Bad Astronomy Are the Stars You See in the Sky Already Dead

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Are Dead Stars Visible In The Night Sky? » Science ABC

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Have any stars visible to human eyes already died? - Big Think

Are Any Stars Visible In The Night Sky Already Dead?