K2-138 e is a fascinating exoplanet orbiting the star K2-138, discovered in 2017 using the transit method by the clever Kepler space telescope’s CCD array. What makes K2-138 e so captivating is that it’s part of a rare cosmic chain—this star hosts a mesmerizing chain of tightly packed planets, like a row of cosmic beads orbiting their sun. Imagine a world caught in a graceful dance with its siblings, each passing in front of their star just so, letting us catch glimpses of their existence from millions of miles away. While details about K2-138 e’s atmosphere and surface are still a mystery, its discovery adds a playful chapter to our growing story of worlds beyond our solar system.
