Today, the leading hypothesis for the existence of hot jupiters is that they formed in their outer solar systems and then migrated inward. why did this hypothesis gain favor over alternative ideas? view available hint(s) today, the leading hypothesis for the existence of hot jupiters is that they formed in their outer solar systems and then migrated inward. why did this hypothesis gain favor over alternative ideas? telescopic observations have revealed several star systems in which planets can be seen migrating rapidly inward. scientists did not find any reason to favor any of the alternate explanations, so by process of elimination they settled on the migration hypothesis. the migration hypothesis requires the least modification to the nebular theory and therefore was preferred over any alternatives. computer models that simulate planetary formation show that interactions between young planets and other material in the surrounding disk can cause planetary migration