Beijing, China (SPX) Oct 19, 2022
An enormous number of near-Earth asteroid (NEA) orbit around the Sun, and among them 2072 NEAs, which are recorded in the Minor Planet Center (MPC) database, belong to the class of potential hazardous near-Earth asteroids (PHAs). These PHAs frequently make close approaches to Earth's orbit, and therefore, the hazard caused by PHAs is still a very real and ever-present threat. Faced with potentia
