Before Galileo observed that Jupiter had moons of its own, the prevailing theory in astronomy was that everything in the universe revolved around the Earth, a philosophy known as geocentrism.
In 1610, Galileo trained his newly-invented telescope upon Jupiter, and observed what he at first called 'fixed stars' orbiting around it. This direct evidence that not everything revolved around us after all was the first large crack in the geocentric theory, and major evidence of Copernicus's competing theory of heliocentrism: that planets and their moons revolve around the sun instead.
Aristotle did not discover the moons of Jupiter or mountains on the moon. The discovery of Jupiter's moons was made by Galileo Galilei in 1610. Mountains on the moon were observed by Galileo as well, using his telescope in the early 17th century. Aristotle lived in ancient Greece in the 4th century BC and did not have access to the technology needed for these astronomical observations.
Uranus was not discovered by Galileo Galilei. Some of the things that Galileo did discover was that there were four moons around Jupiter and that everything falls at the same speed.
Galileo Galilei named Jupiter's four biggest moons after figures from Greek mythology: Io, Europa, Ganymede, and Callisto. He discovered these moons in 1610 using a telescope.
Galileo Galilei did not discover any moons orbiting Saturn; his observations were primarily focused on Jupiter. He is credited with discovering four large moons of Jupiter, known as the Galilean moons, in 1610. Saturn's moons were discovered later, with the first being Titan, which was observed by Christiaan Huygens in 1655.
Jupiter has the Galilean moons. So called because they were the first moons of Jupiter, discovered by Galileo using the new telescope.
Galileo Galilei
Galileo di Vincenzo Bonaiuti d'e Galilei. He found them with his refracting telescope in the year 1600's
Galileo discovered them. Their names are: Io, Callista, Europa and Ganymede. He discovered them in January 1610. == ==Galileo Galilei in 1610.
Galileo did NOT discover Jupiter; just Jupiter's 4 largest moons.
Aristotle did not discover the moons of Jupiter or mountains on the moon. The discovery of Jupiter's moons was made by Galileo Galilei in 1610. Mountains on the moon were observed by Galileo as well, using his telescope in the early 17th century. Aristotle lived in ancient Greece in the 4th century BC and did not have access to the technology needed for these astronomical observations.
Uranus was not discovered by Galileo Galilei. Some of the things that Galileo did discover was that there were four moons around Jupiter and that everything falls at the same speed.
That was Galileo.
Galileo Galilei named Jupiter's four biggest moons after figures from Greek mythology: Io, Europa, Ganymede, and Callisto. He discovered these moons in 1610 using a telescope.
Galileo Galilei did not discover any moons orbiting Saturn; his observations were primarily focused on Jupiter. He is credited with discovering four large moons of Jupiter, known as the Galilean moons, in 1610. Saturn's moons were discovered later, with the first being Titan, which was observed by Christiaan Huygens in 1655.
Jupiter is the planet that has four Galilean moons. These moons are Io, Europa, Ganymede, and Callisto, discovered by Galileo Galilei in 1610.
Galileo Galilei was the person credited with discovering the four largest moons of Jupiter, including the one we now call Ganymede.
Galileo's greatest discovery was the discovery of jupiter's moons and rings.