Saturn, Jupiter’s outer neighbour, currently has 83 known satellites. The four larger moons mentioned above, also known as the 'Galilean moons', account for 99.997 percent of the total mass of Jupiter ...

that recently touched down on the Moon, the Lunar GNNS Receiver Experiment (LuGRE) has become the first practical demonstration of acquiring and tracking Earth orbital GNSS satellites. LuGRE ...

That’s good news because GPS and Galileo are two of several so ... meaning there are plenty of satellites for future Moon ...

Let's return to Taurus and Jupiter in the east this evening as another Galilean moon and shadow transit ... might be hard to see, as our satellite is bright and nearly fully lit, now almost ...