Astrophysicist and Nobel Prize Laureate Didier Queloz answers the who, what, where, when and why of exoplanets in this 3-part series. Embed code <iframe width=”649″ height=”360″ src=”https://www.youtube.com/embed/d4Wr1Hhno4g?rel=0″ frameborder=”0″ allow=”encrypted-media” allowfullscreen></iframe>