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Who discovered the four largest moons of this planet?

Who discovered the four largest moons of this planet?

  • A) Issac Newton
  • B) William Herschel
  • C) Johannes Kepler
  • D) Galileo Galilei

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Correct Answer is (D) Galileo Galilei.

Galileo Galilei discovered the four largest moons of this planet. In January 1610, Italian astronomer Galileo Galilei discovered four of Jupiter’s moons — now called Io, Europa, Ganymede and Callisto.

The planet Jupiter’s four largest moons are called the Galilean satellites after Italian astronomer Galileo Galilei, who first observed them in 1610.

This ‘family portrait’ shows a composite of images of Jupiter, including it’s Great Red Spot, and its four largest moons. From top to bottom, the moons are Io, Europa, Ganymede and Callisto.

All Quiz Answers

Answer 1: (D) Weightlifting

Answer 2: (C) Mann Kaur

Answer 3: (B) Wally Funk

Answer 4: (A) Cheetah

Answer 5: (D) Galileo Galilei

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