🚨 For the first time, NASA's Hubble Space Telescope has found water vapor in the atmosphere of a habitable-zone super-Earth size exoplanet. 💦 Its size and surface gravity are much larger than Earth’s, and its radiation environment may be hostile, but a distant planet called K2-18b has captured the interest of scientists all over the world. For the first time, researchers have detected water vapor signatures in the atmosphere of a planet beyond our solar system that resides in the "habitable zo