Guest
Jedidah Isler first fell in love with the night sky as a little girl. Now she’s an astrophysicist who studies supermassive hyperactive black holes. In a charming talk, she takes us trillions of kilometers from Earth to introduce us to objects that can be 1 to 10 billion times the mass of the sun — and which sometimes shoot powerful jet streams of particles in our direction. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and d
