DiscoverDeep Sage Nine StarCastDeep Sage Nine Starcast Episode 025
Deep Sage Nine Starcast Episode 025

Deep Sage Nine Starcast Episode 025

Update: 2025-10-19
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Candle Stars The podcast episode discusses how the pioneering work of Henrietta Swan Leavitt on Cepheid variables—giant pulsating stars whose period of pulsation directly relates to their true luminosity—provided the first reliable standard candle for astronomers like Edwin Hubble to measure vast cosmic distances and understand the expansion of the universe.   Episode Links: On […]
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Deep Sage Nine Starcast Episode 025

Deep Sage Nine Starcast Episode 025

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