CURRENT AFFAIRS

Detailed explanation-1: -Hubble Finds First Evidence of Water Vapor at Jupiter’s Moon Ganymede . For the first time, astronomers have uncovered evidence of water vapor in the atmosphere of Jupiter’s moon Ganymede. This water vapor forms when ice from the moon’s surface sublimates–that is, turns from solid to gas.

Detailed explanation-2: -NASA’s Hubble Space Telescope observations of Jupiter’s icy moon Europa have revealed the presence of persistent water vapor – but, mysteriously, only in one hemisphere. Europa harbors a vast ocean underneath its icy surface, which might offer conditions hospitable for life.

Detailed explanation-3: -Jupiter’s moon Ganymede is proving to be a fascinating world. Not only is it the largest moon in our solar system, bigger than the planet Mercury and the dwarf planet Pluto, but NASA’s Hubble Space Telescope has found the best evidence yet for an underground saltwater ocean on Ganymede.

Detailed explanation-4: -Jupiter. Jupiter doesn’t have a solid surface, but its atmosphere contains water vapor. Jupiter’s moons harbor a lot of ice in many forms. Ganymede has water ice on the surface, and likely has a large ocean of salty liquid water deep in the subsurface.

Detailed explanation-5: -It is one of the many natural satellites of the planet Jupiter. Pluto and Mercury are much smaller than Ganymede. The Hubble Space Telescope has detected solid evidence for a subterranean salt-water ocean on Ganymede.