Jupiter isn’t as huge as we thought it was

Jupiter is smaller than scientists believed for nearly 50 years, measuring 8 kilometers narrower at its equator and 24 kilometers flatter at its poles than previously estimated. NASA's Juno mission, which orbited Jupiter's poles starting in 2016, provided more accurate measurements than earlier Voyager and Pioneer spacecraft from the 1970s. These revised measurements require scientists to update their models of Jupiter's formation and atmospheric behavior, potentially offering new insights into how gas giants formed in the early solar system.