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 ...

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 ...

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

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 ...

Europa was one of four moons discovered on Jan. 7, 1610, by astronomer Galileo Galilei. Speaking of Galileo, this photo was ...

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 ...

You’re looking at its four Galilean Moons, by far the largest of the giant ... Ganymede and its shadow, Callisto, and Io in partial eclipse. Go used a Celestron C14 14-inch Schmidt-Cassegrain ...