The largest moon in our solar system is Jupiter’s Ganymede, which has a radius of 1,636.8 miles or about four-tenths of the planet Earth, and is twice as massive as our Moon. That makes it a supermoon in our solar system … but a puny satellite when compared to an exomoon discovered recently by astronomers. Read more »
James Web Space Telescope has reached a milestone in its unfolding and this marks start of a crucial phase. James Webb Space Telescope lifted off on December 24 and is now in the phase of unfolding before it can start its function as most powerful eye in the sky of humanity.