The new evidence regarding Callisto comes from a somewhat surprising place: old data. NASA's Galileo mission, which launched into space in 1989, was designed to study Jupiter, its moons ...

But for both GPS and Galileo the signals are a bit wider than the Earth, so they spill past into space beyond. And so as a ...

The second-ever commercial landing on the moon comes amid a flurry of lunar exploration activity that will see around a dozen missions this year alone ...

In the 1990s, NASA's Galileo mission discovered the presence of intense electron beams within the Alfvén wing and other regions near Io. These electrons can travel along the local magnetic field ...

Discovered by Galileo Galilei in 1610, Io, Callisto, Europa and Ganymede are proving to be fascinating topics of study for modern day astronomers. We’ve already sent a mission to one of them ...

But for both GPS and Galileo the signals are a bit wider than the Earth, so they spill past into space beyond. And so as a spacecraft, you can pick up these spillover signals, we call them ...

But for both GPS and Galileo the signals are a bit wider than the Earth, so they spill past into space beyond. And so as a spacecraft, you can pick up these spillover signals, we call them ...