Resumen de Handy guide shows planet parking slots
Julia Fang and Jean-Luc Margot at the University of California in Los Angeles, wanted to find out whether other planetary systems are full, or if they also have unoccupied but stable orbital slots in between their planets. They discovered that about a third of the stable two- and three-planet systems they modeled would go haywire if they added a world, rising to nearly half for four-planet systems. That means the remaining majority of systems have empty stable zones, although that proportion could be revised downwards as more systems are discovered.
