Today’s technology news today – Water vapor was found around Jupiter’s moon “Ganymed” The source of the news – Arabs today with news details Water vapor was found around Jupiter’s moon “Ganymede”:
Today’s news – Washington – Arab Today
The Hubble Space Telescope has discovered evidence of water vapor in the atmosphere around Jupiter’s moon Ganymede, the largest moon in our solar system, according to CNN. It is a process called sublimation. Astronomers discovered this water vapor while using a set of new and archival observations from Hubble. A study published their findings Monday in the journal Nature Astronomy. Previous research indicated that Ganymede – the ninth largest object in our solar system – contains more water than all of Earth’s oceans combined, even though the moon is 2.4 times smaller than our planet. But Ganymede is so cold, temperatures can reach minus 300 degrees Fahrenheit (-184 degrees Celsius), that the surface is a snowy crust of frozen water. There is probably a salty ocean under this crust about 100 miles (161 kilometres). The researchers emphasized that there is no way for the ocean to evaporate through the ice crust to create water vapor. In addition to being the largest natural satellite in our solar system, Ganymede is also the only moon with a magnetic field. This causes auroras to glow around the moon’s north and south poles. The Hubble telescope took the first ultraviolet images of Ganymede in 1998. It revealed this phenomenon. At first, researchers thought that the auroras were due to the atmosphere of pure oxygen, which was first discovered using the same telescope in 1996. But some of the features were inexplicable and looked a little different from each other.
Ganymede’s surface temperature can vary greatly throughout the day. At noon at the moon’s equator, it becomes warm enough for the icy surface to sublimate, or release small amounts of water molecules — which explains the differences seen in the ultraviolet images taken by Hubble. Although Ganymede’s icy crust is as hard as rock, the influx of charged particles from the sun is enough to erode and release water vapor. The European Space Agency’s “Goss” mission will launch in 2022, will reach Jupiter in 2029 and will spend three years observing the giant planet and its three largest moons. Ganymede will be included in this survey, and researchers hope to learn more about the moon as a potential habitat for life.Understanding more about Ganymede can help researchers learn a lot about how gas giants like Jupiter and its moons formed and evolved over time — and whether the moons were Glaciers, spread across our solar system, are habitable environments.
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