NASA’s Juno, the spacecraft on a Jupiter mission, has successfully completed its first of 36 orbital flybys, coming closer to the giant planet than any man-made object before it. The time of the closest approach was on Saturday at 1.44pm GMT, when Juno passed about 4,200 kilometres above Jupiter’s clouds, the US space agency said on its website. At that time, Juno was travelling at a speed of 208,000 kilometres per hour, Efe news reported.