365K views · 1.8K shares | In 2022, our first planetary defense test mission, the Double Asteroid Redirection Test (DART), will attempt to change the motion of a small moonlet, Dimorphos, that poses no threat to Earth. This demonstration, led by the JHU Applied Physics Laboratory (APL), will test a new asteroid deflection technology: www.nasa.gov/dart | NASA - National Aeronautics and Space Administration | Facebook