Brian May, best known as the lead guitarist of the rock band Queen but also an astrophysicist collaborating with the mission’s science team, speaks at Johns Hopkins University Applied Physics Laboratory in Laurel, Md., shortly after midnight on Tuesday morning, Jan. 1, 2019. May introduced a music video of a new song, “New Horizons,” which he wrote to celebrate the moment the NASA spacecraft New Horizons encountered Ultima Thule, an object orbiting one billion miles beyond Pluto.  (Matt Roth/The New York Times) Photo: MATT ROTH, NYT / NYTNS