Using data from the Juno spacecraft, which has orbited Jupiter since 2016, NASA refined the planet's dimensions. Its equatorial diameter is now put at 142,976 km (88,841 miles), about 5 miles less than earlier, and its polar diameter at 133,684 km (83,067 miles), around 15 miles smaller. Jupiter is roughly 7% wider at the equator because of its fast spin. Separately, JNCASR scientists found unusual particle-to-wave phonon heat transport in the ultralow-conductivity crystal Tl2AgI3.