New Horizons principal investigator Alan Stern of the Southwest Research Institute (SwRI), Boulder, CO, left, New Horizons Mission Operations Manager Alice Bowman of the Johns Hopkins University Applied Physics Laboratory, second from left, New Horizons mission systems engineer Chris Hersman of the Johns Hopkins University Applied Physics Laboratory, second from right, and New Horizons project scientist Hal Weaver of the Johns Hopkins University Applied Physics Laboratory, right, participate in a press conference after the team received confirmation from the New Horizons spacecraft that it has completed the flyby of Ultima Thule, Tuesday, Jan. 1, 2019 at Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Maryland. Photo Credit: (NASA/Joel Kowsky)