| Ultimi arrivi - Jupiter: the "King" and His Moons |
Europa,_Io_and_Jupiter.jpgOver the "Eye"102 visiteNice frame.MareKromiumSet 04, 2022
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Jupiter.jpgA "Hole" in the King!107 visiteNaturalmente non è un "buco": solo l'ambra di Ganymede, che oscura una piccola Regione del Gigante Gassoso. Un raffronto fra questa immagine e quella che propone l'ombra di Io (PIA23437) potrebbe risultare interessante...MareKromiumSet 01, 2022
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Europa_and_Jupiter.jpgI am speechless...166 visiteC'è un luogo del Sistema Solare dove pensiamo di trovare forme di vita extraterrestri. Ha un nome molto familiare ed è uno dei satelliti di Giove: si chiama Europa. Questo mondo ha delle caratteristiche geologiche che lo rendono estremamente interessante da decenni. Fuori è coperto da una spessa crosta ghiacciata, ma dentro contiene un enorme oceano, proprio come quelli che abbiamo qui sulla Terra (vedi Nota 1).
La sua caratteristica unica suggerisce che l'acqua oceanica può "in qualche modo muoversi attraverso il guscio e raggiungere la superficie", ha affermato Alyssa Rhoden, scienziato del Southwest Research Institute in Colorado. Se l'affermazione è, in effetti, vera, "i nutrienti e l'energia possono circolare tra l'oceano, il guscio di ghiaccio e la superficie, e questo può essere benefico per la vita".
L'imminente Europa Clipper della NASA è una missione rivoluzionaria per capire di più sul corpo planetario e sul suo potenziale di abitabilità. Verrà lanciato nel 2024 e arriverà nel 2030.
NASA's upcoming Europa Clipper is a groundbreaking mission to learn more about the planetary body and its potential for habitability. It will launch in 2024 and arrive in 2030.
Rhoden said, "I started researching Europa 22 years ago and have always had the same images to work with. So, I'd say I'm EXTREMELY excited about the new datasets that Clipper will provide. As for habitability, there are probably many ways it will inform us about it, but what I'm most interested in seeing is evidence of liquid water within the ice shell."
When asked what life might be found on Europa, Rhoden quipped, "Space whales, obviously." (See Note 2.)
Note 1: This information is over 28 years old;
Note 2: If this lady is a "scientist," then it's really over...MareKromiumAgo 20, 2022
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JUPITER-Lightnings.jpgJupiter's Lightnings95 visiteIn the data from Juno’s first eight passes by the planet, the spacecraft’s Microwave Radiometer Instrument (MWR) detected 377 Jovian lightning discharges. Scientists saw that lightning on Jupiter can be as frequent as it is on Earth.MareKromiumGen 02, 2022
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JUPITER_S_RINGS-01-PIA25038_width-640.jpg95 visiteCaption NASA Originale:"This high-resolution image of Jupiter's main dust ring was collected by the Stellar Reference Unit (SRU) navigation camera aboard NASA's Juno spacecraft. The image was taken from inside the ring looking out as Juno flew between Jupiter and the radiation belts during the spacecraft's 36th close flyby on Sept. 2, 2021. The brightest thin dust bands are associated with the orbits of Jupiter's small moons, Metis and Adrastea. The image is at a resolution of nearly 20 miles (32 kilometers) per pixel".MareKromiumGen 02, 2022
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Ganymede-P-51236218280_1b20779992_o.pngGanymede95 visitenessun commentoMareKromiumGiu 09, 2021
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Jupiter-PIA22936.jpgThe "Giant" from Earth149 visiteThis Earth-based observation of Jupiter and the South Tropical Disturbance approaching the Great Red Spot was captured on January, 26, 2018 by the Amateur Astronomer Christopher Go, who also processed the image.MareKromiumApr 04, 2020
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Jupiter-PIA22948.jpgJupiter Abyss...180 visiteCaption NASA Originale:"NASA's Juno spacecraft captured this view of an area within a Jovian jet stream showing a vortex that has an intensely dark center. Nearby, other features display bright, high altitude clouds that have puffed up into the sunlight.
The color-enhanced image was taken at 12:55 a.m. PDT (3:55 a.m. EDT) on May 29, 2019, as the spacecraft performed its 20th science fly-by of Jupiter. At the time, Juno was about 9.200 miles (approx. 14.805,96 Km) from the Planet's cloud tops, above approximately 52° North Latitude.
Citizen scientists Gerald Eichstädt and Seán Doran created and named this image using data from the spacecraft's JunoCam imager".MareKromiumApr 04, 2020
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Jupiter-White_Storm-PIA23445.jpgWhite Storm on Jupiter143 visiteCaption NASA Originale:"This view of Jupiter's Upper Atmosphere from NASA's Juno Spacecraft includes something remarkable: two storms caught in the act of merging.
The two white ovals seen within the orange-colored band left of center are Anticyclonic Storms — that is, storms that rotate counter-clockwise. The larger of the two ovals has been tracked for many years, as it grew in size through mergers with other Anticyclonic white ovals.
JunoCam was fortunate to capture this new merger, which typically takes place over the course of only a few days.
The event interests scientists because the ovals had approached each other months earlier, only to move apart again.
This merger may be the result of perturbations due to the proximity of Oval BA, which is the larger storm just to the North of the two merging, white ovals. Oval BA is the second largest Anticyclonic Vortex in Jupiter's Atmosphere (second only to the famous Great Red Spot). During this pass over Jupiter, Juno gave scientists their best views of Oval BA to date.
Citizen scientist Tanya Oleksuik created this color-enhanced image using data from the JunoCam camera. The original image was taken on December, 26, 2019, at 10:28 a.m. PST (1:28 p.m. EST) as the Juno Spacecraft performed its 24th close fly-by of the Planet. At the time, the Spacecraft was about 44.900 miles (such as approx. 72.259,54 Km) from the tops of Jupiter's clouds, at a latitude of about 60° South".MareKromiumApr 04, 2020
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Europa-PIA23166.jpgRhadamanthys Linea (Enhanced Natural Color Version)135 visiteCaption NASA Originale:"Europa's Surface is covered with a vast network of Linear Features such as cracks, ridges, and bands, as well as other smaller circular features that include pits, spots, domes, and microchaos.
This image, created from clear-filter images taken on the Galileo spacecraft's 17th orbit around Jupiter and colorized with lower-resolution images taken on Galileo's first orbit around Jupiter, shows a huge variety of these feature types.
Of particular note is the prominent ridge at the center of the image, called Rhadamanthys Linea.
While most ridges have a reddish appearance in colorized images such as this enhanced color version, Rhadamanthys appears to have uneven blotches of darker, redder material which are more prominent in some locations than in others.
Some scientists have interpreted the appearance of Rhadamanthys to indicate that it is a recently, or perhaps currently, active feature on Europa's Surface".MareKromiumApr 04, 2020
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Jupiter-PIA21974.jpgWhat a View!172 visitenessun commentoMareKromiumApr 04, 2020
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Jupiter-PIA23442.jpgOn the Limb...149 visiteCaption NASA Originale:"NASA's Juno spacecraft captured this impressive image revealing a band of swirling clouds in Jupiter's Northern Latitudes during Juno's close fly-by occurred on November, 3, 2019. Small pop-up storms can also be seen rising above the lighter areas of the clouds, most noticeably on the right side of the image.
This view provides scientists with high-resolution details — the spacecraft skimmed approximately 3.200 miles (such as about 5.149,9 Km) above Jupiter's cloud tops at the time it was taken.
Citizen scientist Björn Jónsson created this enhanced color image using data from the JunoCam camera. The picture, as we wrote above, was taken on November, 3, 2019 at 2:13 p.m. PST (5:13 p.m. EST) at a Latitude of about 38° North".MareKromiumApr 04, 2020
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