PASADENA, CA - JULY 4: In this NASA handout, From left to right: Dr. Jim Green, Planetary Science Division Director, NASA; Scott Bolton, Juno principal investigator, Southwest Research Institute; Geoff Yoder, acting Associate Administrator for the Science Mission Directorate, NASA; Michael Watkins, director, NASA's Jet Propulsion Laboratory (JPL); and Rick Nybakken, Juno project manager, Jet Propulsion Laboratory (JPL); celebrate with others on the Juno team after they received confirmation from the spacecraft that it had successfully completed the engine burn and entered orbit of Jupiter on July 4, 2016 in Pasadena, CA. The Juno mission launched August 5, 2011 and will orbit the planet for 20 months to collect data on the planetary core, map the magnetic field, and measure the amount of water and ammonia in the atmosphere. (Photo by Aubrey Gemignani/NASA via Getty Images) MANDATORY CREDIT: (NASA/Aubrey Gemignani) Disposition: AFS 8/101 - Permanent

PASADENA, CA - JULY 4: In this NASA handout, From left to right, Jack Connerney, Juno deputy principal investigator and magnetometer lead co-investigator, NASA's Goddard Space Flight Center; Chris Jones, associate director for flight projects and mission success, NASA's Jet Propulsion Laboratory (JPL); Dr. Jim Green, Planetary Science Division Director, NASA; Scott Bolton, Juno principal investigator, Southwest Research Institute; Geoff Yoder, acting Associate Administrator for the Science Mission Directorate, NASA; Michael Watkins, director, NASA's Jet Propulsion Laboratory (JPL); and Rick Nybakken, Juno project manager, Jet Propulsion Laboratory (JPL); celebrate with others on the Juno team after they received confirmation from the spacecraft that it had successfully completed the engine burn and entered orbit of Jupiter on July 4, 2016 in Pasadena, CA. The Juno mission launched August 5, 2011 and will orbit the planet for 20 months to collect data on the planetary core, map the magnetic field, and measure the amount of water and ammonia in the atmosphere. (Photo by Aubrey Gemignani/NASA via Getty Images) MANDATORY CREDIT: (NASA/Aubrey Gemignani) Disposition: AFS 8/101 - Permanent

PASADENA, CA - JULY 4: In this NASA handout, Dr. Jim Green, Planetary Science Division Director, NASA, is seen in the mission control room, awaiting communication from Juno that the engine burn has begun, positioning the spacecraft into orbit around Jupiter on July 4, 2016 in Pasadena, CA. The Juno mission launched August 5, 2011 and will orbit the planet for 20 months to collect data on the planetary core, map the magnetic field, and measure the amount of water and ammonia in the atmosphere. (Photo by Aubrey Gemignani/NASA via Getty Images) MANDATORY CREDIT: (NASA/Aubrey Gemignani) Disposition: AFS 8/101 - Permanent

TOPSHOT - (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

(From L) Geoff Yoder, acting administrator for NASA's Science Mission Directorate, Diane Brown, NASA Juno program executive, Scott Bolton, Juno principal investigator, Juno Project manager Rick Nybakken, Guy Beutelschies, Lockheed Martin director of space exploration and Steve Levin, Juno Project scientist, attend a press conference after the Juno spacecraft was successfully placed into Jupiter's orbit, at the Jet Propulsion Laboratory in Pasadena, California on July 4, 2016. 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 / Robyn BECKROBYN BECK/AFP/Getty Images

(From L) Geoff Yoder, acting administrator for NASA's Science Mission Directorate, Diane Brown, NASA Juno program executive, Scott Bolton, Juno principal investigator, Juno Project manager Rick Nybakken, Guy Beutelschies,and Lockheed Martin director of space exploration, celebrate at a press conference after the Juno spacecraft was successfully placed into Jupiter's orbit, at the Jet Propulsion Laboratory in Pasadena, California on July 4, 2016. 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 / Robyn BECKROBYN BECK/AFP/Getty Images

(From L) Geoff Yoder, acting administrator for NASA's Science Mission Directorate, Diane Brown, NASA Juno program executive, Scott Bolton, Juno principal investigator and Rick Nybakken, Juno project manager, celebrate at a press conference after the Juno spacecraft was successfully placed into Jupiter's orbit, at the Jet Propulsion Laboratory in Pasadena, California on July 4, 2016. 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 / Robyn BECKROBYN BECK/AFP/Getty Images

(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