The Double Asteroid Redirection Test (DART) mission is directed by NASA to the Applied Physics Laboratory (APL) with support from several NASA centers: the Jet Propulsion Laboratory (JPL), Goddard Space Flight Center (GSFC), Johnson Space Center (JSC), Glenn Research Center (GRC), and Langley Research Center (LRC).  

• DART is a planetary defense-driven test of technologies for preventing an impact of Earth by a hazardous asteroid.   
• DART will be the first demonstration of the kinetic impactor technique to change the motion of an asteroid in space.   
• The DART mission is in Phase C, led by APL and managed under NASA’s Solar System Exploration Program. 

Source: https://www.nasa.gov/planetarydefense/dart