The past few years have ushered in an explosion of new discoveries about our universe. This hour, TED speakers explore the implications of these advances — and the lingering mysteries of the cosmos.

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Tags:  TED Radio Hour,  gravitational waves,  Allan Adams,  Big Bang,  Sara Seager,  radio telescope,  supermassive black hole,  Jedidah Isler,  Natasha Hurley-Walker,  galaxy,  planets