Assume that we discover a new moon of Jupiter.It orbits Jupiter at a large distance and in the opposite direction that Jupiter rotates.It is much smaller than most of Jupiter's other moons
And has a density close to that of Earth rocks.Therefore, this moon is most likely
A) a regular moon that formed with Jupiter in the early Solar System.
B) an irregular moon that is most likely a captured asteroid.
C) an irregular moon that is most likely a captured comet.
D) an irregular moon that is most likely a protoplanet that collided with Jupiter in the early Solar System and then was caught in orbit by Jupiter's gravity.
E) More information is needed before any conclusion can be made.

Question

Quizplus · Accepted Answer

The moon's retrograde orbit, large distance from Jupiter, small size, and rocky density suggest it is an irregular moon, likely a captured asteroid.

Assume That We Discover a New Moon of Jupiter