Click for next articleOn Aug. 5, 2011, NASA launched the Juno spacecraft on a mission to study Jupiter, the largest planet in the solar system. Since it arrived in Jupiter's orbit in 2016, the Juno spacecraft has taken the most amazing photos of Jupiter anyone has ever seen! But it has also taken plenty of scientific measurements to study Jupiter's composition, magnetic fields, weather patterns and more. Image 1 of 3 A United Launch Alliance Atlas V rocket blasts off carrying NASA's Juno mission. (Image credit: Patrick H. Corkery/United Launch Alliance) This artist's rendering shows NASA's Juno spacecraft making one of its close passes over Jupiter.