Quasars, blazars and supermassive, hyperactive black holes

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April 21, 2015 Today’s TED Talk Jedidah Isler: How I fell in love with quasars, blazars and our incredible universe 04:19 minutes · TED2015 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. Watch now » Playlist of the Day Way, way out there Travel across the universe (or is it universes?) as star-gazing speakers share stunning images of Saturn's rings, haunting sounds from distant black holes and an infectious sense of wonder about what lies beyond our skies. Watch » 17 talks · Total run time 4:21:38 Join us on Facebook Follow us @TEDTalks

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