Launched five years ago, the Juno spacecraft has primarily utilized the gravitational influences of the Sun and Earth during its circuitous, 2.8 billion-kilometer journey. This week, Jupiter’s gravity has taken over as the dominant force drawing Juno toward its rendezvous with the giant planet. When it arrives, on July 4, the basketball court-size probe will enter orbit and circle Jupiter 37 times, descending to within 3,100 miles of the cloud tops. At that altitude, Juno will be able to peek below the obscuring clouds to analyze auroras in order to understand better the planet’s atmosphere, origin, structure, and magnetosphere. So, like its mythical namesake, Juno will pull back the veil on some of Jupiter’s secrets.