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Actually, we do. Asteroids large enough to be considered planet-killers are the easiest ones to spot. https://youtu.be/4Wrc4fHSCpw https://youtu.be/4Wrc4fHSCp
by willis936 6y ago
Actually, we do. Asteroids large enough to be considered planet-killers are the easiest ones to spot.
https://youtu.be/4Wrc4fHSCpw https://youtu.be/4Wrc4fHSCpw