> ## Content Index
> Fetch the complete content index at: https://www.cascadepbs.org/llms.txt
> Use this file to discover other available public pages before exploring further.

# How Many Black Holes Are In The Solar System?
- URL: https://www.cascadepbs.org/show/pbs-space-time/episode/how-many-black-holes-are-in-the-solar-system-0dkk6m/
- Published: 2025-01-31T15:15:57.000Z
- Updated: 2025-08-21T13:47:20.000Z
- Description: Dark matter has eluded us for many decades but we may be able to discover more now.
- Author: Cascade PBS Staff
- Tags: PBS Space Time, Season 10, Episode 31, #ZZZ_Episode_074dad37-20be-47f1-a98a-14175307d7b6, #episode, #ZZZ_Show_ae70f836-13b6-4c9d-b61f-99f7b8bc29eb, #v1.16

Dark matter has eluded us for many decades. Even our most advanced particle colliders and sophisticated underground detectors have come up short. But it may be that we can finally solve this mystery with a much simpler experiment, involving a ray of light, a good clock, and the planet Mars.