A Whisper of a Hint of Primordial Black Holes plus Earth BLOBs
About this episode
The episode discusses the potential discovery of primordial black holes through gravitational waves and explores the significance of Earth's mantle BLOBs in understanding the planet's magnetic history.
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.
People in this episode
Hosts: Joshua Colwell, Adrienne Dove, James Cooney
Topics covered
- gravitational waves
- primordial black holes
- dark matter
- Earth's mantle
- magnetic field
Keywords
- gravitational waves
- primordial black holes
- dark matter
- Earth BLOBs
- magnetic field
Mentioned in this episode
Organizations: LIGO
Places: Earth
More episodes of Walkabout the Galaxy
- Distant Quasars and Earth's Quasi-Moon
- I See a Big Moon Rising and a Bright Radio Sky
- Europa's Disappearing Plumes
- Second Generation Black Hole Mergers and Solar System Chaos
- Whacky Black Hole Collisions and Strange Uranian Rings
- Little Plutino Has An Atmosphere and Making Sense of Saturn
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