  The central objective of the New Horizons prime mission was to make the first
exploration of Pluto and its system of moons. Following that, New Horizons has
been approved for its first extended mission, which has the objectives of
extensively studying the Kuiper Belt environment, observing numerous Kuiper
Belt Objects (KBOs) and Centaurs in unique ways, and making the first close
flyby of the KBO 486958 2014 MU69. This review summarizes the objectives and
plans for this approved mission extension, and briefly looks forward to
potential objectives for subsequent extended missions by New Horizons.
