Near-Earth Objects

NASA

Near-Earth Asteroids as of August 31, 2023

Near-Earth objects (NEOs) are asteroids and comets that orbit the Sun like the planets with orbits that come within 30 million miles of Earth’s orbit. NASA established the Planetary Defense Coordination Office (PDCO) to manage the agency’s ongoing efforts in Planetary Defense, which is the “applied planetary science” to address the NEO impact hazard. One key element of the PDCO…