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  • NASA capsule makes lunar flyby on its way to record-breaking orbit

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    Breaking down NASA's successful DART mission

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Breaking down NASA's successful DART mission

05:59

In a first for humanity, NASA successfully changed the path of an asteroid with the agency’s DART mission that used a spacecraft to hit the nonthreatening asteroid Dimorphus. NBC News’ Joshua Johnson is joined by DART lead coordinator Dr. Nancy Chabot to break down what lead to the success of the historic defense system.