Will Pluto collide eventually collide with Neptune?
A) No because Pluto's orbit is completely outside Neptune's orbit.
B) No because Pluto's orbit is completely inside Neptune's orbit.
C) No because Pluto's orbit never comes anywhere close to Neptune's orbit.
D) No because the two planets have an orbital resonance that prevents them from colliding.
E) Yes.

Question

Quizplus · Accepted Answer

Pluto and Neptune are in a 3:2 orbital resonance, meaning Pluto orbits the Sun twice for every three Neptune orbits. This resonance ensures that their orbits are aligned in such a way that they never come close enough to collide.

Will Pluto Collide Eventually Collide with Neptune