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LLNL Simulates 1 Million Cislunar Orbits, Reveals 97,000 Stable Paths

2/20/2026

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Summary

Story summary

Lawrence Livermore National Laboratory (LLNL) simulated 1 million cislunar orbits, finding 9.7% remained stable over six years amid gravity from Earth, the Moon, and the Sun.
54% of orbits were stable for at least one year.
The team identified about 97,000 stable orbits and suggested potential for future exploration and services for lunar colonies, with findings published in August 2025 and still pending peer review.

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Story summary

Lawrence Livermore National Laboratory (LLNL) simulated 1 million cislunar orbits, finding 9.7% remained stable over six years amid gravity from Earth, the Moon, and the Sun.
54% of orbits were stable for at least one year.
The team identified about 97,000 stable orbits and suggested potential for future exploration and services for lunar colonies, with findings published in August 2025 and still pending peer review.