Rank 17 documents Juno — the New Frontiers mission that entered Jupiter polar orbit on 4 July 2016 after an Atlas V 551 launch, carrying microwave radiometer, magnetometers, and JunoCam public outreach camera inside a titanium radiation vault. Scott Bolton's SwRI-led team mapped Jupiter's gravity field, documented the Great Blue Spot, captured first close polar cyclone views, and extended operations beyond the primary mission into the 2020s. Juno's 53-day polar orbit and 18,698-cell solar arrays proved deep-space solar power at five AU. Wallimilist renders the wing-span hero, Jupiter band backdrop, and magnetosphere ellipses exactly as the master PNG dictates — 2016 kicker, polar-orbit label, and curator copy on New Frontiers giant-planet science.