Inward migration is a hypothesis used to explain why
A) Jupiter-sized planets are seen orbiting close to some stars
B) some stars do not have Jupiter-sized planets
C) some stars do not have planets at all
D) Terrestrial-sized planets are seen orbiting far from some stars

Question

Quizplus · Accepted Answer

Inward migration is a hypothesis that suggests that Jupiter-sized planets move closer to their host stars over time due to gravitational interactions with other objects in the system. This would explain why some Jupiter-sized planets are seen orbiting close to their stars.

Inward Migration Is a Hypothesis Used to Explain Why