In the significant findings about the existence of water outside the earth and its months, astronomers have the first time to find evidence of water vapor in the atmosphere of Jupiter’s moon ganymede, throwing the possibility that there is a life presence in the biggest month of our solar system.
According to a study published in the astronomical nature journal on Monday, the form of water vapor when the ice of the surface of the moon changes directly to the gas directly to the gas, a process called sublimation.
Scientists use new datasets and archives from NASA Hubble Space Telescope to make the discovery of water vapor.
Previous research has offered direct evidence that Ganymede contains more water than all oceans of the earth.
However, the temperature there is very cold so that the water on the surface is frozen solidly.
The sea of ​​guymede will stay approximately 100 miles under the crust.
Therefore, water vapor will not represent the evaporation of this ocean, said NASA.
Astronomers re-examined Hubble’s observation of the past two decades to find evidence of this water vapor.
As part of a major observation program to support Juno Nasa’s mission in 2018, Roth Lorenz from the Kth Royal Institute of Technology in Stockholm, Sweden, led the team departing to measure the amount of oxygen atoms with Hubble.
Team analysis combines data from two instruments: Hubble Cosmic Origins spectrographs in 2018 and archive images of Space Telescope Imaging Spectrograph (SIS) from 1998 to 2010.
According to their research, the surface temperature of the Ganymede varied throughout the day, and around noon.
Near the equator might be quite warm so the surface of the ice releases (or sublimation) a small amount of water molecules.
The main NASA findings will provide head-ups to the upcoming mission of the European Space Agency, Juice (Jupiter Icy Moons Explorer), which is planned to be launched in 2022 and arrivals in Jupiter in 2029.
Juice will spend three years of detailed observations from Jupiter and The biggest three months, with special emphasis on Ganymede as potential habitat.
Ganymede is identified for detailed investigations because it provides natural laboratories for natural analysis, evolution and the potential of ice world habits in general.
“Our results can provide a juice instrument team with valuable information that can be used to improve their observations plan to optimize the use of spacecraft,” Roth said.
At present, Juno NASA’s mission looked close to Ganymede and recently released a new image of ice.
Juno has studied Jupiter and his environment, also known as the Jovian system, since 2016.