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 ...

On this date, Jan. 7, 1610, astronomer Galileo Galilei, with a homemade telescope ... and Ganymede became known as the Galilean moons of Jupiter. Learn more about NASA’s current mission to ...

With the telescope having been recently invented ... They are more commonly referred to as the Galilean moons of Jupiter owing to the fact that they were discovered by Galileo.

Following the discovery of the Galilean moons in January 1610 by means of a thin telescope with a focal length of 133 centimetres and a magnification of 20, many great astronomers tried to find ...

The Galileo probe expanded on our knowledge of Jupiter's moon, Io, showing us just how hot and hellish the Jovian satellite could be.

On January 7, 1610, the Italian astronomer Galileo discovered three of Jupiter's moons: Callisto, Europa and Io. When he looked at Jupiter through his telescope, he saw what he thought were three ...

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 ...

The journey of astronomical telescopes began in the early 17th century when Galileo Galilei crafted his first refracting ...

Io, a highly volcanic world, is the innermost Galilean moon of Jupiter ... Ocean Moons Of Uranus-And There's No Time To WasteBy Jamie Carter You will need a telescope to see such events, but ...

On this date, Jan. 7, 1610, astronomer Galileo Galilei, with a homemade telescope ... and Ganymede became known as the Galilean moons of Jupiter.

Much more recently, beginning in 1892, dozens of far smaller Jovian moons have been detected and have received the names of lovers (or other sexual partners) or daughters of the Roman god Jupiter or ...