The giant planet story is the story of the solar system. NASA's latest mission to the outer planets, Juno will arrive at Jupiter in July 2016. Beneath its clouds, Jupiter holds secrets about our solar system's early history. By far the largest planet orbiting the sun, Jupiter has had a powerful influence on the many bodies that circle our star. If we want to understand how systems of planets form, Jupiter is a critical piece of the puzzle. What we learn from the Juno mission will provide new insights to help us understand the formation of our own family of planets and the origins of the many planetary systems now being discovered around other stars.