How Do We Know What Stars Are Made Of?

PBS Space Time · Oct 25, 2026 · 15m

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Uploaded 01-09-20

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Pin-pricks in the celestial sphere, through which shines the light of heaven? Or gods and heroes looking down from their constellations? Or lights kindled above middle earth by Varda Elbereth and brightened with the dew of the trees of Valinor? Science has long pondered the mysteries of the stars. This is how we finally…