Can Earth-Like Worlds Form Beside Hot Jupiters? The Surprising Answer from Planet Formation Science When astronomers began discovering planets around other stars, they were stunned by what they found. Many of these planets—some as massive as Jupiter—were orbiting their stars at blistering speeds, completing a full year in just a few days. These “hot Jupiters” defied everything we thought we knew about planetary systems. After all, in our own Solar System, giant planets like Jupiter and Saturn or