If you look at the gas giant with a telescope as it's rising, you'll spot three of its Galilean moons: Io alone to the west, with Ganymede (closer) and Callisto (farther) to the east. But that ...

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 ...

The Galileo space probe images we have received of Callisto reveals a pumice-like moon. In the tradition of its Jupiter and its moons, this moon, receives the superlative of "most heavliy cratered ...

Galileo Galilei's telescopic discovery of Jupiter's four moons in 1610 revolutionized astronomy and supported heliocentric ...

now known as the Galilean moons: Io, Europa, Ganymede, and Callisto. Many of these celestial orbs are as remarkable as Jupiter itself. The largest moon in the solar system, Ganymede is also the ...

Dave Dexter, composer of The Galilean Suite, four tone poems about the largest moons of Jupiter—Io, ... [+] Ganymede, Callisto and Europa. It's fair to say that of all the moons, it’s Io—the ...

It's tugged in all directions during its orbit by the gravity of Jupiter and the three other Galilean moons (Europa, Ganymede and Callisto). The friction builds up heat inside Io and causes ...

Jupiter's largest moons, known as the Galilean moons, are Io, Europa, Ganymede, and Callisto. These moons were discovered by Galileo Galilei in 1610 and are significant for their unique ...