Fortunately, the SPHERE receiver’s adaptive optics system corrects these distortions, providing very clear images in which details as small as 150 km can be seen. After all, they look like a coin at a distance of 3-5 km - and this despite the fact that the earth’s atmosphere greatly blurs their images. To better understand Jupiters cloud motions and to help NASAs robotic Juno spacecraft understand the planetary contexti of the small fields that it sees, the Hubble Space Telescope is being directed to regularly image the entire Jovian giant. It is worth noting that observing the Jovian moons using ground-based telescopes is not the easiest task. Jupiter looks a bit different in infrared light. An image of Ganymede obtained by the ESO’s Very Large Telescope. In particular, they found out that the bright areas of Ganymede consist mainly of water, in the form of ice with admixtures of various salts, and that they formed later than the older and darker areas, the composition of which still remains a mystery. ![]() Thanks to the new images obtained by SPHERE, as well as spectra, scientists were able to make estimates of chemical compounds on the surfaces of Jupiter’s icy moons. It is also believed that most likely, due to tidal influences, active jets and geysers are beating from under the surface of Europa. + Telescope’s NIRCam instrument 2.12 micron filter. As a result of the deformations that occur, heat is released, which warms the bowels of the moons and supports the existence of huge oceans in them. Left: Jupiter, center, and its moons Europa, Thebe, and Metis are seen through the James Webb Space. This process leads to their periodic compression and stretching under the influence of the powerful gravitational field of the planet. The orbits of Jupiter’s moons are slightly elliptical - as they orbit the gas giant, they sometimes come closer to it, then move away again. This is even larger than the diameter of Mercury. As for Ganymede, it is the largest moon of the planet in the Solar System. ![]() Thus, it is slightly smaller than our moon. ![]() Wong (University of California, Berkeley) and the OPAL teamĮuropa ranks sixth in the list of the largest moons of planets in the Solar System. Simon (Goddard Space Flight Center), and M. Collage with images of Europa and Ganymede obtained by the ESO’s Very Large Telescope. Jupiter is a complex system full of mysteries, hosting realms of questions concerning the. They demonstrate Ganymede and Europa - two icy moons orbiting Jupiter. The James Webb Space Telescope will soon turn its eyes to the solar systems king, the gas giant Jupiter. The presented images were obtained using the SPHERE infrared receiver mounted on the ESO’s Very Large Telescope.
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