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From: Savant1/7/2026 2:51:03 PM
   of 727
 
A passing star could fling Earth out of orbit faster than anyone previously predicted

  • Stellar Flybys: Passing stars can gravitationally disturb the solar system, giving Earth a 0.2% chance of ejection or collision over 5 billion years, and Mars a 0.3% chance.
  • Mercury as Trigger: Mercury often becomes unstable first, potentially colliding with the Sun or Venus, which can cascade to Earth’s orbit disruption.
  • Outer Solar System Risks: Even Pluto’s resonance with Neptune could be broken by stellar encounters, giving it a 4–5% chance of ejection or destruction.

A passing star could fling Earth out of orbit faster than anyone previously predicted
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