The eruption released energy six times greater than all Earth's power plants combined, exceeding 80,000 trillion watts.

There are currently 92 moons known to orbit Jupiter. The four largest – Io, Europa, Ganymede and Callisto – were discovered by Galileo Galilei in 1610 when he pointed the first astronomical telescope ...

The inspiration for these films come from the incredible images and sounds coming from the Galileo space probe. The four large moons of Jupiter were thought to be nothing more interesting than our ...

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 ...

Ganymede is the cup-bearer of the gods. Though he shows some superficial signs of age, the protection of Jupiter and his distance from the sun keep him in a state of eternal youth- his younger ...

During last week’s 17th European Space Conference, launch company Arianespace announced it had won three new contracts.

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 ...

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 ...

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 ...

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.