1/5 Lindsay Duncan reads from Hilary Spurling's biography of American writer Pearl Buck.
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27/30 Heather Couper looks at research that shows stars are like controlled nuclear explosions.
2/5 Pearl Buck's missionary family face violence and famine in early 20th-century China.
28/30 How the use of infrared telescopes increased our understanding of distant planets.
3/5 Marrying in haste and soon repentful, Pearl Buck discovers that writing lets her escape.
29/30 Astronomers in the past decade have tried to find other planets like Earth in the universe