A giant tornado and magnetic vortices: Juno received the first data about Jupiter

© Photo : J. E. P. Connerney et al., Science (2017)North and South pole of Jupiter, Juno probe capturesA giant tornado and magnetic vortices: Juno received the first data about Jupiter© Photo : J. E. P. Connerney et al., Science (2017)

. The first data from the Juno probe showed that Jupiter’s magnetic field was surprisingly powerful, about 10 times stronger than the magnetic shield of the Earth, and also revealed an unusual tornado the size of the moon and the Earth at the poles of the giant planet. The pictures and the results of their analysis were presented in two papers in the journal Science.

The Juno probe flying to Jupiter five years from August 2011, in early July of last year was close to a giant planet and came to a stable orbit around it. The first two months after convergence, the probe spent on the reduction of the orbit and the scientific instruments and the first scientific data were obtained only at the end of August.

Verification of all scientific instruments Juno and the transition to new, more convenient to conduct observations, the orbit was to be held in mid-October of 2016, however, just before beginning this maneuver, NASA fixed a problem with the engine, which forced engineers to postpone its mission for the next conjunction with Jupiter.

This series of failures has not ended, and during the rendezvous with Jupiter, the probe unexpectedly went into «safe mode», thus eliminating extensive and hastily compiled a programme of scientific observations, which Juno had planned instead of a failed orbital change. About a week after that, NASA announced that the probe was able to normal operation, but no plans for its further fate has not been announced.

In addition, the depths of Jupiter was surprisingly well «mixed» and homogeneous in its composition, which scientists do not expect to see. This picture of how carefully scientists assume, can be explained by the presence of Jupiter’s large nucleus, which occupies about half of the planet, however confirmation of this will require large amounts of additional data.

The main surprise for Bolton and his team was the strength of the magnetic field of Jupiter the «surface» of his clouds – it turned out to be about 13 times stronger than the equivalent figure for the Earth, and more troubled than previously thought. This value, as noted by Bolton, which is approximately two times higher than shown by theoretical calculations and observations by using sensors probe «Galileo», «Voyager» and «New Horizons».

Another surprise associated with the magnetic field of Jupiter, was that the scientists failed to find in it traces of electric currents associated with auroras, resulting from the interaction of the magnetic «shield» of the planet and the coronal emissions of the Sun. According to the scientists, this could again be due to the unusual device of Jupiter’s core and its large size.

Further study and «probing» at great depths in the bowels of Jupiter, as scientists hope will help you understand why this is happening and perhaps give clues about what is in the core of the giant planet. Yet, as noted by NASA scientists, it all points to lack metallic hydrogen in it, as suggested by some planetary scientists.