The Symphony of Silence: Listening to the Cosmos

From ripples in spacetime to the acoustic imprint of the Big Bang, this episode explores how modern astrophysics moves from observing the universe to listening to it. We unpack gravitational waves and LIGO’s chirps, pulsar timing arrays that hear the low-frequency hum of spacetime, and how the cosmic microwave background’s acoustic peaks reveal a spatially flat, ever-expanding cosmos. We also look ahead to space-based listening with LISA and the power of sonification to turn data into audible insight.

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