On-board instrument designed and built at Iowa has yielded numerous discoveries about Jupiter The U.S. space agency NASA announced this week it will extend the Juno mission to Jupiter and its moons through September 2025, or until the spacecraft’s end of life. Along for the ride has been a radio- and plasma-wave instrument designed and built at Iowa. Photo courtesy of NASA/JPL-Caltech. By: Richard C. Lewis | 2021.01.14 | 12:09 pm The University of Iowa will have several more years to study the largest planet in our solar system. The U.S. space agency NASA announced this week it will extend the Juno mission to Jupiter and its moons through September 2025, or until the spacecraft’s end of life. Launched in 2011, the Juno spacecraft arrived at Jupiter on July 4, 2016, with a planned mission completion in July 2021.