Surprise! Newfound Asteroid Is 'Quasi-Moon' of Earth






It seems the moon is not Earth's only cosmic companion.

The newly discovered asteroid 2016 HO3 orbits the sun in such a way that the space rock never strays too far from Earth, making it a "quasi-satellite" of our planet, scientists say.

"One other asteroid — 2003 YN107 — followed a similar orbital pattern for a while over 10 years ago, but it has since departed our vicinity," Paul Chodas, manager of NASA's Center for Near-Earth Object Studies at the Jet Propulsion Laboratory in Pasadena, California, said in a statement Wednesday (June 15).

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