NASA Says 15,000 “City Killer” Asteroids Are Still Missing Near Earth

NASA Says 15,000 “City Killer” Asteroids Are Still Missing Near Earth

NASA scientists say Earth remains vulnerable to thousands of large asteroids that have never been detected, highlighting a major gap in planetary defense systems that could leave humanity unprepared for a future impact. At a major scientific conference this month, NASA’s acting planetary defense officer Kelly Fast revealed that astronomers have only identified about 10,000 […] The post NASA Says 15,000 “City Killer” Asteroids Are Still Missing N…