But it won't be a star that will be keeping the moon company on this early winter's evening, but the largest planet in the ...

A new study by Kobe University planetologist Hirata Naoyuki has revealed that Ganymede, the largest moon in our solar system, experienced a massive asteroid impact approximately 4 billion years ago.

For comparison, our moon is just a quarter of the size of Earth, while the largest moon in the solar system, Ganymede, is around 1/28 the size of its parent planet, Jupiter. That means that the ...

Opinions expressed by Forbes Contributors are their own. Jamie Carter is an award-winning reporter who covers the night sky. Icy moon Ganymede—which JUICE will orbit—appears as a gray, mottled ...

The four largest – Io, Europa, Ganymede and Callisto – were discovered by Galileo Galilei in 1610 when he pointed the first astronomical telescope at the Moon, Venus and the planet Jupiter in quick ...

This effect is particularly interesting in the case of large icy moons like Ganymede ... of the icy moon of Europa (Getty Images/Stocktrek Images)“These icy moons serve as our most promising ...

Since completing its primary science objectives in orbit of Jupiter, Juno has been conducting flybys of the Jovian moons Io, ...

A massive volcano on Jupiter's moon, Io is more powerful than all of Earth's power stations combined - says American space agency, Nasa. The huge volcano was recently detected during flyby of the Juno ...

“It’s a big dead ice rock with the oldest surface in our solar system ... Photograph Jupiter's 'Dead' Moon 21 TimesBy Jamie Carter Although you can watch the Ganymede tone poem being performed ...