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[EN VIDÉO] Fly over Jupiter with the Juno spacecraft Discover Jupiter like you’ve never seen it before thanks to the work of a citizen scientist. Using images collected by the Juno probe, he was able to create a 3D model of the Jovian surface, which provides a breathtaking overview.
Fifth planet in our solar system in order of distance to our planet starAnd the Jupiter On the other hand, it is the largest (approximately 140,000 kilometers in diameter) and the largest (more than 300 times the mass of the Earth). similar in composition to Sunconsisting mainly ofhydrogen And the’heliumThe gas giant You may have been before accumulation of material in nebula Solar. But it seems that the presence of the so-called metallic elements, heavier than helium, indicates that Jupiter will have not only gaseous substances accumulated during its early stages of existence, but also metallic elements, potentially coming from protoplanets, solid substances, called planets.
Many probes to study the giant solar system
Despite visiting many probes since the beginning of the seventies, Jupiter is still full of secrets: Gas Known to him is only representative of the upper fifty kilometers fromatmosphere of the planet, impeding anyone’s view of its internal structure and composition.
In 1995, the probe Galileo standing in orbiting around Jupiter and dropped a small atmospheric probe there, which provided us with valuable information about the composition of the upper layers of its atmosphere, before it was crushed by the powerful the pressure who reigns there. It was then necessary to wait until 2016 for the investigation to take place Juno subordinate NASA It is placed in orbit around Jupiter with the aim of collecting data on the planet’s inner layers, in particular by studying its gravitational field. It’s still operating today, and NASA plans to stop the mission in 2025.
Training processes are still under discussion
Although the idea that Jupiter was formed through the accumulation of gas in Cloud Protosolar is generally accepted, the period and processes of accretion of mineral elements are still debated. The majority of the scientific community agrees that during its formation, the planet first accumulated rocky material, and then followed a rapid period of gaseous accumulation, which gave it its current dimensions. But the period of accumulation of rocky material remains very mysterious: Could the planet have formed large rocky bodies – small planets – during the early stages of its existence, or would it have been limited to picking up debris?
a New study He claims that he is able to make the decision, thanks to the exploitation of gravity data collected by Juno: according to the authors, clues to the composition and evolution of Jupiter lie in the depths of its atmosphere. By mapping the presence of metallic elements in the planet’s core, derived from measurements made by the Gravity Science instrument installed on the probe, scientists have succeeded in highlighting the highly heterogeneous nature of its atmosphere: the majority of the metallic elements are concentrated toward the center, for a total mass ranging from 11 And 30 times the mass of the Earth.
Thus, Jupiter would have continued to accumulate large amounts of metallic elements while extending its gaseous envelope.
According to the study’s authors, when a protoplanet is massive enough, it will begin to expel debris surrounding it, due to its very low mass; However, the richness in mineral elements was observed in gas giant It was not accessible before Jupiter was too massive to repel all the debris, which indicates the role of the most massive rocky bodies in the early stages of the planet’s accretion.
Thus, Jupiter would have continued to accumulate large amounts of metallic elements while extending its gaseous envelope, calling into question the hypothesis of two distinct accretion periods. Moreover, the heterogeneous nature of Jupiter’s atmosphere seems to explain the absence of effective convective processes in its inner layers, which scientists previously believed to be present.
In addition to a more accurate view of Jupiter’s internal structure and evolutionary processes, this study could also have implications for the study of outer planets gases and mineral.
Jupiter The color mosaic consists of 27 images taken from nine locations (in red, green and blue) by the Cassini-Huygens probe on December 29, 2000, when it was 10 million kilometers from Jupiter. This is the best image of Jupiter ever, which allows you to view the details, the smallest being 60 km.
The Shoemaker-Levy Effect on Jupiter The photo was taken in July 1994, right after the impact.
IU and Cassini Jupiter
Jupiter and its system
breakout on io Incredible photos of the eruption of the Io volcano in the Tvshtar region
europe ice pack 1
Europe ice pack 2
Outbreak on Ayo: Tvshtar District Lava fountains in the caldera in the Tvshtar region.
Snow slopes in Europe
Europe Structure Models
Volcanic plumes on Io
Evolution of volcanic plumes on Io
Evolution of the Earth on Io
Important volcanic areas on Io
Comparison of the major satellites of Jupiter (surfaces)
Comparison of the major satellites of Jupiter
Comparison between Io and Amalthe In this image we compare the size of two moons of Jupiter. Note the similarity in color which probably means that Amalthe owes its color to plumes of sulfur ejected by Io.
Lava fountains on Io
Tvshtar volcanic area
Recently drowned on Io The image shows, in the dark, a recent influx of Io, covering an ancient (?) deposit area. For more: http://photojournal.jpl.nasa.gov/catalog/PIA02557
Sodium clouds surrounding Io This image, taken with filters, shows the gaseous atmosphere of sodium and sulfur from eruptions on Io. For more information: http://photojournal.jpl.nasa.gov/catalog/PIA01111
When the buyer approaches On September 21, 2010, Jupiter was 591 million km from Earth, the shortest distance since 1963. Then the planet shone with a force of -2.9. © BA Tafrishi
Asteroid disintegrating in Jupiter’s atmosphere June 3, 2010: A flash of light recorded in Jupiter’s atmosphere revealed the disintegration of a small celestial body. We can notice that the southern equatorial band is missing (it is below the bright spot), obscured for several weeks by white clouds. © A Wesley
When amateur astronomers photograph Jupiter’s satellites A selection of the best images of Jupiter’s moons taken between 2007 and 2010 by amateur astronomers. © D.Peach / M. Carrier / D. Lusine / J.-P. Prost
Temporary disappearance of the southern equator Between the image on the left taken in 2006 by C. Go and the image on the right taken in May 2010 by A. Wesley, the disappearance of the southern equatorial band is evident. © Sea Jo and A. Wesley
The red spot in the infrared The top image shows the Great Red Spot and its surroundings imaged in visible by the Hubble Telescope in May 2008. At the bottom, an infrared image made at the VLT at the same time made it possible to map a heat. © ESO / Nasa / JPL / Esa / L. Fletcher
Impact on Jupiter in 2009 The image was taken on July 23, 2009 by WFC-3, the Hubble Space Telescope’s Wide Field Camera. It shows the scattering of debris from the asteroid or comet that hit Jupiter’s upper atmosphere four days ago. © NASA / Esa / H. Hummel (Institute of Space Sciences) / Jupiter Impact Team
The Great Red Spot and its Little Sisters Hubble took three pictures of Jupiter’s red spots in 2008. The arrow points to the small spot that protrudes from the large image, which has lost its red color. ©NASA/ISA/A. Simon Miller (Goddard Space Flight Center) / N. Chanover (New Mexico State University) / c. Orton (JPL)
Aurora on Jupiter Like all planets with a magnetic field, Jupiter shows auroras, imaged here by the Hubble Telescope. ©NASA/ISA/John Clark (University of Michigan)
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