K2-18b is an exoplanet orbiting the red dwarf star K2-18 in the constellation Leo. Classified as a super-Earth, K2-18b gained attention due to the possibility of having liquid water, as it resides within its star’s habitable zone. The exoplanet was discovered using data from the Kepler spacecraft and later studied using the Hubble Space Telescope.
Reference: NASA – K2-18b