NASA officials said what Juno spotted was 'the most powerful volcanic event ever recorded on the most volcanic world in our ...

The final launch of an Ariane 5 ES rocket will loft another four Galileo satellites from the European Spaceport in Kourou, French Guiana on Wednesday – with the launch expected at 11:25 UTC.

The European Union activated its Galileo satellite navigation system in December 2016. The EU is dedicated to setting this system apart from other navigation systems such as GPS - the US ...

You’re looking at its four Galilean Moons, by far the largest of the giant planet’s estimated 79 moons. Their collective name comes from the fact that Galileo first observed them in the year 1609.

And yet, this was the case with Galileo’s discovery of Jovian satellites, which took shape from January 7, 1610. Astronomical changes were brewing at the end of 1609. With the telescope having ...

The Galileo satellite system is a £8bn navigation project intended to rival the US-controlled Global Positioning System. Once fully operational in 2020 it will provide accurate position ...

All together, they form a satellite system which is called the Jovian system. The most massive of the moons are the four Galilean moons: Io; Europa; Ganymede; and Callisto, which were independently ...

Dexter defines The Galilean Suite as tone poems, but while Holst’s inspiration for The Planets was astrological, this work is influenced by what we know about the moons’ geology.

The brutal conditions also make Io intriguing to NASA scientists intent on learning more about the innermost and third-largest of Jupiter’s four Galilean moons. For nine years, a spacecraft ...