Debra Fischer Hunts for a Second Earth at Alpha Centauri

Yale Professor of Astronomy Debra Fischer is one of our planet’s most successful discoverers of exoplanets. She has set her sights on Alpha Centauri, where she hopes to find a Earth-sized world in the habitable zone: not too hot, not too cold for life.Learn more about your ad choices. Visit megaphone.fm/adchoices

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