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Asteroid 2025 PN7: Earth's 60-Year Quasi-Moon Discovery

10/26/2025

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Summary

Story summary

Astronomers confirmed the discovery of asteroid 2025 PN7, a quasi-moon that has accompanied Earth for about 60 years, posing no threat.
It was detected in August 2025 by the Pan-STARRS telescope in Hawaii.
The asteroid orbits the Sun in sync with Earth, remaining not gravitationally bound to the planet and in a quasi-satellite phase until 2083.
The asteroid is about 60 feet wide.
Its closest approach to Earth will be about 186,000 miles.

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Story summary

Astronomers confirmed the discovery of asteroid 2025 PN7, a quasi-moon that has accompanied Earth for about 60 years, posing no threat.
It was detected in August 2025 by the Pan-STARRS telescope in Hawaii.
The asteroid orbits the Sun in sync with Earth, remaining not gravitationally bound to the planet and in a quasi-satellite phase until 2083.
The asteroid is about 60 feet wide.
Its closest approach to Earth will be about 186,000 miles.