Orbiting the star Kepler-138, Kepler-138 c is a charming exoplanet discovered back in 2014 using the clever transit method from the keen eyes of the Kepler Space Telescope's CCD array. This little world resides in the Kepler system, a cosmic neighborhood far beyond our solar reach, where it gracefully circles its star like a dancer in a celestial ballet. Though it doesn’t yet have its own proper name, Kepler-138 c sparks the imagination with possibilities—could it be rocky or maybe a mini-Neptune? While its exact size and mood remain a mystery, this planet stands as a testament to humanity’s quest to explore and understand the vast galaxy, proving the universe is full of surprises, just waiting for curious minds to discover.
