Researchers spot Saturn-sized planet in the “Einstein desert”

Astronomers have discovered the first Saturn-sized rogue planet in the "Einstein desert," a puzzling gap in planet sizes detected through gravitational microlensing events. The planet was spotted when it passed between Earth and a distant star, creating a gravitational lens effect that briefly brightened the star. This discovery supports theories that rogue planets have two distinct origins: smaller planets ejected from solar systems and larger gas giants that formed independently in space, creating the observed size gap.