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In the first-of-its kind experiment, NASA is about to clobber a small, harmless asteroid millions of miles away to change its path slightly. If successful, the test will show that if a killer asteroid ever heads for Earth, there'd be a fighting chance. | AP
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In the first-of-its kind experiment, NASA is about to clobber a small, …
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134 reactions · 58 shares | The first 3D lidar map of asteroid Bennu...
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