Astronomers Have Discovered Earth's Latest Quasi-Lunar Moon
Earth gained a seventh quasi-lunar companion, asteroid 2025 PN7, which shares a 1:1 orbital resonance and will remain a quasi-satellite for about 128 years.
Scientists Intrigued by Mysterious Object Floating Near Earth
Near-Earth asteroid 2025 PN7 is a tiny quasi-moon that has followed Earth for about 60 years while remaining unbound and will depart that configuration in roughly 60 years.