Question 4: How many moons does Jupiter have?
A. 79
B. 92
C. 47
D. 63
Incorrect! Jupiter has 79 known moons as of 2019. This includes the four large Galilean moons - Io, Europa, Ganymede and Callisto - which were discovered by Galileo Galilei in 1610.
You did not specify as of a certain date...