Story perspectives
Study Reveals Black Holes Pose Minimal Injury Risk
11/27/2025
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Story summary
- Robert Scherrer of Vanderbilt University studied primordial black holes passing through humans and found the risk is extremely low.
- A black hole with mass above 140 quadrillion grams could injure like a bullet, while smaller ones would pass unnoticed.
- Scherrer says the density of such black holes makes a human encounter about once every quintillion years.
- The findings appear in the International Journal of Modern Physics D.
