What questions do you have about NASA’s #DARTMission? Join our experts Tuesday, Nov. 23 at 4 p.m. EST. NASA’s Double Asteroid Redirection Test (DART) launches soon on a journey to become the world’s first #PlanetaryDefense test. The spacecraft will intentionally crash itself into an asteroid to see if it can move its motion in space. If it does, this could be proved as a viable way to deflect a threatening asteroid in the future, should one be discovered. DART is a spacecraft designed to impact an asteroi