NASA shares first ever picture of Jupiter's Moon Ganymede’s North Pole

Jupiter has a lot of moons but one particular reign supreme and that is Ganymede. only moon in solar system that is larger than planet Mercury, Ganymede consists primarily of water ice and for first time ever NASA’s Ju craft was able to capture first glimpses of ‘Ganymede’s ice rth pole’. According to a press te released by NASA Jet Propulsion Laboratory, infrared imry collected by craft's Jovian Infrared Auroral Mapper (JIRAM) instrument provides ‘first infrared mapping of massive moon's rrn frontier’. 

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scientists said that ims show an unusual form of ice exists at pole, a that is t encountered on Earth because of magnetic field that filters particles from sun. While on Earth magnetic field provides a pathway for plasma to enter atmosphere and create aurora, Ganymede, on or hand, has atmosphere to impede progress because of which surface at its poles is constantly being bombarded by plasma from Jupiter’s gigantic magnetosphere. 

Alessandro Mura, a Ju co-investigator at National Institute for Astrophysics in Rome, said, “ JIRAM data shows ice at and surrounding Ganymede's rth pole has been modified by precipitation of plasma. It is a phemen that we have been able to learn about for first time with Ju because we are able to see rth pole in its entirety”. 

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According to press release, ice near both poles of moon is amorphous. scientists explained that phemen is because charged particles follow moon’s magnetic field lines to poles, where y impact, wreaking havoc on ice and preventing it from having an ordered structure. researchers said that frozen water molecules detected at both poles have appreciable order to ir arrangement, and amorphous ice has a different infrared signature that crystalline ice found at Ganymede’s equator. 

recent ims of Ganymede will help scientists analyse and understand structures which will help provide furr clues to formation of Jupiter’s moons. NASA’s Ju craft will also receive help in next dece. According to press te, European ncy will seek to explore Ganymede when it launches JUICE -- Jupiter Icy Moons Explorer craft in 2022. By 2030, JUICE is expected to reach Jupiter and by 2032 it is expected to perform close up science at Ganymede. 

(Im: NASA/Website) 

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