Can astronomers use radar to spot a cataclysmic asteroid?

Los Angeles CA (SPX) Feb 20, 2024

How can humans protect the Earth from "devastating asteroid and comet impacts?" According to the National Academies and their 2023-2032 Planetary Science and Astrobiology Decadal Survey, ground based astronomical radar systems will have a "unique role" to play in planetary defense. There is currently only one system in the world concentrating on these efforts, NASA's Goldstone Solar System