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Newly discovered asteroid is Earth's cosmic buddy
Earlier this year, the University of Hawaii's Institute for Astronomy and NASA's Planetary Defense Coordination Office spotted a new companion that follows the Earth on its yearly journey around the sun. According to the Center for Near-Earth Object Studies, the asteroid lovingly named "2016 HO3" is "too distant to be considered a true satellite, but it is the best and most stable example to date of a near-Earth companion, or 'quasi-satellite.'"
