NASA’s Juno spacecraft completes fourth flyby of Jupiter

• NASA’s solar-powered Juno spacecraft completed closest flyby of Jupiter mysterious cloud tops for the fourth time. All eight of Juno’s science instruments were switched on during the flyby.
•  During its closest approach it was roughly 4,300 km above Jupiter’s cloud tops and traveled at a speed of about 208,000 kmph.
•  Currently, Juno is locked in a 53-day orbit around Jupiter. It is expected to perform three dozen flybys over the next one and a half years.
•  During its flybys, Juno probes beneath the cloud cover of Jupiter and studies Jupiter’s auroras to learn more about its origins, structure, atmosphere and magnetosphere
• Juno was launched in August 2011 to study Jupiter’s composition and evolution. It’s the first solar power spacecraft to orbit Jupiter and second after Galileo. 
• The unmanned spacecraft had successfully entered Jupiter’s orbit in July 2016 after a five year journey and traversing distance of nearly 2 billion miles. 
• The primary goals of the mission are to find out whether Jupiter has a solid core, how its atmosphere and magnetosphere formed, and whether there is water in the gas cloud shrouding the planet.
•  The information gathered from it will provide vital clues to how the planet formed and evolved, but also to how the solar system we live in came into existence. 
• The spacecraft has been named after the Roman goddess Juno, the wife of Jupiter who is considered as the god of the sky in ancient Greco-Roman mythology.