Earth has a tiny tagalong, and no, it’s not a moon
Quasisatellite orbits sun, but stays close to Earth
THAT’S NO MOON The orbit of asteroid 2016 HO3 (yellow), discovered April 27, keeps it close to Earth; from our vantage point, it appears as though 2016 HO3 orbits Earth when it actually orbits the sun.
JPL-Caltech/NASA
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