CURRENT AFFAIRS

Detailed explanation-1: -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-2: -Astronomers have used new and archival datasets from NASA’s Hubble Space Telescope to uncover evidence of water vapor in the atmosphere of Jupiter’s moon Ganymede. The vapor is present due to the thermal excitation of water molecules from the moon’s icy surface.

Detailed explanation-3: -And in a surprising development, NASA’s scientists have found water on the surface of one of the smallest of the four Galilean moons orbiting Jupiter. This study has been published in the Planetary Science Journal, which revealed that water exists on the icy crust of Europa moon of Jupiter.

Detailed explanation-4: -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: -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.