Universe & space

Launch of Juno

5 August 2011

Juno is a NASA space probe sent to study Jupiter from orbit, launched from Cape Canaveral on an Atlas V rocket. It was the second mission in the agency's New Frontiers programme. After a journey of five years, including a gravity-assist flyby of Earth, it entered a long polar orbit around Jupiter. Powered by large solar panels, it carries instruments to measure the planet's gravity and magnetic field, its atmosphere and its interior structure, as well as a public-participation camera, JunoCam. Its results include evidence of a diffuse core, deep atmospheric structures and clusters of cyclones at the poles. The mission was extended to include close flybys of the moons Ganymede, Europa and Io.

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