The ancients knew about Jupiter. They knew it was different from other objects in the sky. However, it is not known for sure if one person can claim the discovery, as it happened before recorded history began (which more or less addresses the "when" part).
Galileo Galilei was the person credited with discovering the four largest moons of Jupiter, including the one we now call Ganymede.
Jupiter has been known since ancient times and was observed by various civilizations, including the Babylonians and Greeks. Galileo Galilei was the first to make detailed observations of Jupiter using a telescope in 1610, discovering its largest moons, known as the Galilean moons. Thus, while NASA has conducted extensive studies of Jupiter, its discovery predates the agency and is attributed to early astronomers like Galileo.
the names of jupiter are as follows: jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter jupiter and last but not least JuPiTeR
Jupiter holds the record for the most moons in our solar system, with a total of 79 confirmed natural satellites. These moons vary in size, with the four largest being the Galilean moons Io, Europa, Ganymede, and Callisto.
Matt Clarke created raidiation to kill betrayers
radium
discovering
Galileo Galilei was the person credited with discovering the four largest moons of Jupiter, including the one we now call Ganymede.
Christopher Columbus was an early explorer. He is credited with discovering the Americas.
Europe is the country credited with discovering America.
Euclid
I'm not exactly sure what you mean when you say "discovering." However, Alexander Graham Bell is credited for inventing it. -THE SMOKE LIVES
leif erikson
Columbus
Martinus Beijerinck in 1898.
Marie Curie
Yes, Jupiter has many moons! We are discovering more and more to this day :)