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Juno Probe Reveals More Of Jupiter's Surprises

Postby sunnyd » Sat May 27, 2017 6:33 am

Story : http://www.cbsnews.com/news/juno-probe-reveals-surprises-orbiting-jupiter/





NASA's Juno spacecraft is finding a world of surprises as it orbits giant Jupiter, scientists said Thursday, from the turbulent upper atmosphere where countless cyclones churn across the poles to its deep interior where a larger-than-expected "fuzzy" core may lurk beneath a crushing layer of metallic hydrogen.

Data collected by Juno's microwave radiometer reveal unexpected structure in the atmosphere up to 220 miles below the cloud tops - as deep as the instrument can "see" - and not the uniform mixing scientists had expected.

Juno's instruments also indicate the dynamo driving Jupiter's colossal magnetic field may be located closer to the cloud tops than previously expected, driving huge auroral displays apparently made up in part by electrons being pulled out of the atmosphere instead of the other way around as with auroras on Earth.

"We're surprised, and in fact, all the data really points to the fact that we need the rest of our mission to figure out how Jupiter works," said Scott Bolton, the Juno principal investigator at the Southwest Research Institute.







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