Episode 422
A Whisper of a Hint of Primordial Black Holes plus Earth BLOBs
Walkabout the Galaxy · Josh Colwell, Addie Dove, Audrey Martin, Jim Cooney
March 18, 202640m 48s
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Show Notes
Gravitational Wave observatory LIGO has seen a signature that looks like the merger of primordial (pre-stellar, big bang (not big band!) era) black holes. If confirmed with future observations, this would tell us a lot about the early universe and potentially shed light on dark matter. Finally! Plus, closer to home, the BLOBs in the Earth's mantle help us untangle the complicated past of our magnetic field.