The early warning system to detect asteroids that pose a threat to Earth, operated by NASA and its collaborators around the world, got to flex its muscles.
원문출처 : https://www.cnn.com/2022/03/16/world/asteroid-tests-warning-system-scn/index.html
원문출처 : https://www.cnn.com/2022/03/16/world/asteroid-tests-warning-system-scn/index.html