page_title: Double Asteroid Redirection Test
hierarchical_section_title: Double Asteroid Redirection Test
caption_attribution_description: English: Artist concept of NASA’s Double Asteroid Redirection Test spacecraft or DART. DART, which is moving to preliminary design phase, would be NASA’s first mission to demonstrate an asteroid deflection technique for planetary defense.
context_page_description: Double Asteroid Redirection Test is a planned space probe that will demonstrate the kinetic effects of crashing an impactor spacecraft into an asteroid moon for planetary defense purposes. The mission is intended to test whether a spacecraft impact could successfully deflect an asteroid on a collision course with Earth.
  A demonstration of an asteroid deflection is a key test that NASA and other agencies wish to perform before the actual need of planetary defense is present. DART is a joint project between NASA and the Johns Hopkins Applied Physics Laboratory, and it is being developed under the auspices of NASA's Planetary Defense Coordination Office.
  In August 2018, NASA approved the project to start the final design and assembly phase.
context_section_description: Double Asteroid Redirection Test (DART) is a planned space probe that will demonstrate the kinetic effects of crashing an impactor spacecraft into an asteroid moon for planetary defense purposes. The mission is intended to test whether a spacecraft impact could successfully deflect an asteroid on a collision course with Earth.
  A demonstration of an asteroid deflection is a key test that NASA and other agencies wish to perform before the actual need of planetary defense is present. DART is a joint project between NASA and the Johns Hopkins Applied Physics Laboratory (APL), and it is being developed under the auspices of NASA's Planetary Defense Coordination Office.
  In August 2018, NASA approved the project to start the final design and assembly phase.
caption: DART mission in space.
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