First science results from Juno show surprises in Jupiter’s atmosphere and interior

Newly-released, enhanced colour view of Jupiter’s south pole from Juno as seen on Dec. 11, 2016. The image was taken from an altitude of about 52,200 kilometres (32,400 miles) above the planet’s beautiful cloud tops. Image Credit: NASA/JPL-Caltech/SwRI/MSSS/Gabriel Fiset

There has been a lot of attention given to the Cassini mission at Saturn lately, but meanwhile, NASA’s Juno probe also continues to be busy studying the largest planet in the Solar System, Jupiter. Juno is now revealing more of the giant planet’s secrets, and the first science results have now been published, which were presented last week at the European Geosciences Union meeting. As is common in planetary science, the new findings include significant surprises.

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NASA’s Juno spacecraft completes fifth close flyby of Jupiter, with more incredible images

Crescent Jupiter, with two of its moons, Europa and Io, as seen by Juno during its fifth flyby on March 27, 2017. This is a view never possible from Earth. Image Credit: NASA/JPL-Caltech/SwRI/MSSS/Roman Tkachenko

NASA’s Juno spacecraft has successfully completed its fifth close flyby of Jupiter, gathering more scientific data and sending back more incredible images of the largest planet in our Solar System. Juno, the first mission dedicated to Jupiter since Galileo, has been helping scientists to understand some of the long-standing mysteries about the largest planet in our Solar System.

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Juno spacecraft to remain in same orbit, but science observations of Jupiter continue

Spectacular view of Jupiter’s south pole from Juno, taken on Feb. 2, 2017 at 6:06 a.m. PT (9:06 a.m. ET), from an altitude of about 62,800 miles (101,000 kilometers) above the cloud tops (enhanced color version). Image Credit: NASA/JPL-Caltech/SwRI/MSSS/John Landino

NASA’s Juno spacecraft has been orbiting the gas giant planet Jupiter since July 4, 2016, and has already greatly increased scientists’ understanding of this fascinating world, the “King of Planets.” For the past while now, Juno has been in an elongated 56-day orbit, which brings the spacecraft close in over the cloud tops before swinging out farther away from the planet again. The plan had been for Juno to then switch to a closer, 14-day orbit, but due to growing concerns over another engine burn possibly resulting in a less-than-desirable new orbit, that plan has now been scrapped. Juno will now remain in its current orbit for the remainder of the mission.

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Image Gallery: Jupiter’s ‘Little Red Spot’ from Juno

Photo Credit: NASA/JPL-Caltech/SwRI/MSSS/Gerald Eichstaedt/John Rogers

The Juno spacecraft has sent back a beautiful new view of Jupiter’s “Little Red Spot,” a smaller and paler version of the Great Red Spot, which is an anticyclone in the atmosphere (a large-scale circulation of winds around a central region of high atmospheric pressure). Other complex cloud patterns can also be seen. The image was first taken on Dec. 11, 2016. The amazing full image is below:

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Juno spacecraft exits safe mode, prepares for next close flyby of Jupiter in December

Artist’s conception of Juno orbiting Jupiter. Image Credit: NASA
Artist’s conception of Juno orbiting Jupiter. Image Credit: NASA

As reported a few days ago, the Juno spacecraft orbiting Jupiter had entered safe mode, a precautionary turning off of all but vital instruments and other components when a software performance monitor induced a reboot of the spacecraft’s onboard computer. Now, Juno has successfully exited safe mode and is otherwise healthy and ready to continue its exploration of Jupiter.

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