The Infinite Monkey Cage - Series 22 - It's a middle-aged star, about 4.5 billion years old... - ³ÉÈË¿ìÊÖ Sounds

The Infinite Monkey Cage - Series 22 - It's a middle-aged star, about 4.5 billion years old... - ³ÉÈË¿ìÊÖ Sounds


Series 22

Solar scientist Lucie Green's one-minute need-to-know guide to the Sun.

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