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Pentagon officially releases 'UFO' videos

NASA's Double Asteroid Redirection Test (DART) spacecraft will intentionally crash into a small asteroid, Dimorphos, in a first-ever test of planetary defense, should we ever need it. The #DARTMission's target asteroid is NOT a threat to Earth before, during or after the impact event. For more, visit: https://www.nasa.gov/dart Credit: NASA Producers: Scott Bednar & Jessie Wilde Editor: Matt Schara Voice Actor: Paul Leon