Most hot Jupiters are thought to have formed in the orbits they have been discovered.

Question

Quizplus · Accepted Answer

Most hot Jupiters are thought to have formed farther out from their parent star and then migrated inwards due to gravitational interactions with other planets or the protoplanetary disk. Most hot Jupiters are believed to have migrated inward from their original orbits, either through interactions with their protoplanetary disk or other planets in the system.

Most Hot Jupiters Are Thought to Have Formed in the Orbits