A remote hot Jupiter exoplanet has foregone the typical solitary life that worlds of its kind normally lead, in favor of companionship with another planet — and now, astronomers think they know why.
Hot Jupiters are gas giants that orbit exceedingly close to their star. However, they don't form that close, but are rather assembled much farther out before migrating inward. When they make that trip, they usually kick out any other planets in their way — but the hot Jupiter TOI-1130c seems to have latched onto a smaller planet as a traveling companion. The two seem to have migrated towards their star together.
