Pluto and Charon formed through a 'kiss and capture' collision Earth.comAstronomers have for decades tried to figure out how Pluto captured its largest moon. Now, there’s a new theory CNNPluto May Have Captured Its Biggest Moon Charon After an Ancient Dance and Kiss The New York TimesCapture of an ancient Charon around Pluto Nature.comHow Pluto captured its largest moon Charon with a 10-hour icy 'kiss' Space.com