Monstrous cyclones churning over Jupiter's poles

Monstrous cyclones are churning over Jupiter's poles, until now largely unexplored.NASA's Juno spacecraft spotted the chaotic weather once it began skimming the giant gas planet's cloud tops last year. Scientists released their first major findings Thursday.The cyclones are hundreds of miles across and clustered near the poles. The diameters of these cyclones stretch up to 870 miles (1,400 kilometers). Even bigger, though shapeless weather systems are present in both polar regions.Launched in 20