NASA's ATLAS, a planetary defense system that scans the sky for near-Earth objects, has been upgraded to search the entire night sky--half of it in either hemisphere--once every 24 hours. The surveillance system is vital for tracking objects like asteroids and debris that are on a collision course with Earth.
NASA's ATLAS, a planetary defense system that scans the sky for near-Earth objects, has been upgraded to search the entire night sky--half of it in either hemisphere--once every 24 hours. The surveillance system is vital for tracking objects like asteroids and debris that are on a collision course with Earth.
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