On January 7, 1610, the Italian astronomer Galileo discovered three of Jupiter's moons: Callisto, Europa and Io. When he ...

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 ...

Research and development is underway to create robots that can hunt for signs of life in the vast oceans that exist under the ...

NASA's Juno spacecraft has again captured stunning images of Jupiter and its moon Io, providing more insights into the solar ...

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

📅 Today in History: In 1610, Italian astronomer Galileo Galilei, through improvements he made on a homemade telescope, first observed Jupiter’s four Galilean moons: Ganymede, Callisto, Io and Europa.

Italian astronomer Galileo Galilei peered through his newly improved 20-power homemade telescope at the planet Jupiter. He ...

January's full Moon came to be known as the Wolf Moon because wolves were more likely to be heard howling at this time.

Jupiter boasts a vast system of moons, with four particularly large ones known as the Galilean moons (Io, Europa, Ganymede, and Callisto). These moons exhibit diverse characteristics, from ...

shifts from half-full to a crescent and reaches peak brightness just after Februarys full moon. Jupiter: Second brightest in the east, its four moonsGanymede, Callisto, Europa, and Ioare visible ...