Just in time for the Fourth of July, Juno arrived at Jupiter firing its main rocket engine for 35 minutes allowing the gas giant’s gravity to capture the spacecraft. Juno is now on the first of two 53.4 day-long orbits known as capture orbits. After completing the capture orbits, Juno’s engine will fire once more to shorten its orbital period to only 14 days to begin the science phase of its mission.