How Many Black Holes Reside In The Solar System?
Summary
This episode explores the hypothesis that dark matter consists of asteroid-mass primordial black holes, which have evaded previous detection methods. The host explains how the solar system can act as a giant detector by monitoring the precise gravitational influence of these invisible objects on planetary orbits. Specifically, the discussion focuses on using decades of high-precision tracking data from Mars orbiters to identify subtle deviations in the planet's path caused by passing black holes.
Topics discussed
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Intro: Solving the Dark Matter Mystery
The Dark Matter Problem and Failed Hypotheses
Primordial Black Holes as Dark Matter Candidates
Formation of PBHs and Solar System as Detector
Dark Matter Density and Particle Number Estimates
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PBH Distribution and Gravitational Lensing
OGLE Survey Results and Remaining Mass Windows
PBH Passage Frequency and Detection Challenges
Gravitational Effects of PBH Flybys on Planets
Measuring Tiny Orbital Shifts Over Time
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Precision of Planetary Motion Prediction
Measuring Distances via Light Travel Time
Using Mars Satellites for Distance Tracking
Distinguishing PBHs from Asteroids
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Trajectory Differences: In-Plane vs Steep Flybys
Analyzing Past Data for PBH Evidence
Future Monitoring and Conclusion
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Space Shuttle Patent Anniversary and Merch
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Space Time Merchandise Details
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