📅 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.

The moon was first discovered in 1610 by Galileo Galilei, but its volcanism was ... In 2011, the Juno spacecraft was launched to study Jupiter and its moons. In 2023 and 2024, the spacecraft ...

It was probably during his time at Padua that his path first crossed with Galileo Galilei and the two men ... independently discovered the four major moons of Jupiter. Nearly three years later ...

Astronomer Galileo Galilei discovered it ... from Jupiter (and consequently of Jupiter’s gravitational pull) along this orbit constantly squeezes the moon, causing extreme tidal flexing.

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 ...

The data was compared with observations from previous missions that have flown by Jupiter and its moons, such as NASA’s Galileo spacecraft, as well as ground-based telescopes. Together ...

Scientists with NASA's Juno mission to Jupiter have discovered that ... Although the moon was discovered by Galileo Galilei on Jan. 8, 1610, volcanic activity there wasn't discovered until 1979 ...

Jupiter's volcanic moon Io doesn ... deep layer of magma: a moon-wide ocean of molten rock. In the 1990s, NASA's Galileo mission performed magnetic induction measurements that suggested there ...

The four "Galilean moons" were named after Italian astronomer Galileo Galilei, who is thought to have discovered them in 1610. As night falls, Jupiter will rise in the east-northeast, among the ...

such as Jupiter’s moon Europa and planets beyond our solar system. Italian astronomer Galileo Galilei, known as the father of modern astronomy, discovered Io on January 8, 1610. But the moon’s ...