Approximately what fraction of the world's population cannot see the Milky Way as a visible feature?
Answer
One-third of the world's population
It is estimated that roughly one-third of the global population lives under skies so illuminated by artificial light that the faint, diffuse structure of the Milky Way is completely obscured. This inability to perceive our home galaxy is increasing due to the ongoing expansion of urban and suburban lighting environments, contrasting sharply with the clear visibility experienced in rural areas far removed from city glow.
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