Explained: NASA's 'save the world' experiment which will see a spacecraft crash into an asteroid
2 years, 3 months ago

Explained: NASA's 'save the world' experiment which will see a spacecraft crash into an asteroid

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NASA plans to crash a small, harmless asteroid millions of miles away. The aim is just to nudge the asteroid into a slightly tighter orbit around its companion space rock — demonstrating that if a killer asteroid ever heads our way, we’d stand a fighting chance of diverting it Cape Canaveral: In the first-of-its-kind, save-the-world experiment, NASA is about to clobber a small, harmless asteroid millions of miles away. The impact should be just enough to nudge the asteroid into a slightly tighter orbit around its companion space rock — demonstrating that if a killer asteroid ever heads our way, we’d stand a fighting chance of diverting it. “This really is about asteroid deflection, not disruption,” said Nancy Chabot, a planetary scientist and mission team leader at Johns Hopkins University’s Applied Physics Laboratory, which is managing the effort. Another spacecraft, Near-Earth Asteroid Scout, is loaded into NASA’s new moon rocket awaiting liftoff; it will use a solar sail to fly past a space rock that’s less than 60 feet next year.

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