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"The bad news is #NASA estimates that it tracks only about 40 percent 馃搳 of the #asteroids 鈽勶笍 #large enough that they could cause calamity if they were to hit 馃挜 #Earth" https://www.washingtonpost.com/technology/2022/10/24/nasa-asteroid-telescope
#ESA : #Asteroid danger explained https://www.esa.int/ESA_Multimedia/Images/2018/06/Asteroid_danger_explained