Multiple choice general knowledge science & technology

Who discovered Jupiter's four largest satellites?

  1. Johannes Kepler

  2. Galileo Galilei

  3. Sir Issac Newton

  4. Tyco Brahe

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B Correct answer
Explanation

Galileo Galilei discovered Jupiter's four largest moons, Io, Europa, Ganymede, and Callisto, in January 1610 using his improved telescope. These are called the Galilean moons in his honor. Kepler, Newton, and Brahe made major contributions to astronomy but did not discover these satellites.

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