(From R) Rick Nybakken, Juno project manager, Scott Bolton, NASA principal investigator for the Juno mission to Jupiter and Jim Green, NASA director of Planetary Science, react as the Juno spacecraft successfully enters Jupiter's orbit on July 4, 2016, at the Jet Propulsion Laboratory in Pasadena, California. Juno was launched from Cape Canaveral in Florida on August 5, 2011 on a five-year voyage to its mission to study the planet's formation, evolution and structure. / AFP PHOTO / POOL / Ringo ChiuRINGO CHIU/AFP/Getty Images
