By which collective name (after their discoverer) are the four major moons of Jupiter known?
A) "Ptolemic," after Ptolemy
B) "Newtonian," after Newton
C) "Copernican," after Copernicus
D) "Galilean," after Galileo

Question

Quizplus · Accepted Answer

The four major moons of Jupiter—Io, Europa, Ganymede, and Callisto—are known as the Galilean moons, named after Galileo Galilei, who discovered them in 1610.

By Which Collective Name (After Their Discoverer) Are the Four