Kepler-186f orbits its star at a distance of about 0.43 AU (64,000,000 km; 40,000,000 mi) from its host star with an orbital period of roughly 130 days, and a radius around 1.17 times that of Earth. In 2014, NASA's Kepler spacecraft discovered an Earth-sized planet in the habitable zone of its star, approximately 500 light-years away from Earth. This planet, known as Kepler 186f, has captured the attention of astronomers and space enthusiasts alike due to its potential for habitability. The discovery of Kepler-186f confirms that Earth-size planets exist in the habitable zone of other stars and signals a significant step closer to finding a world similar to Earth. Kepler-186f is less than ten percent larger than Earth in size, but its mass and composition are not known. NASA Discovers Promising Exoplanet in Hunt for Extraterrestrial Life In a significant advancement for the search for life beyond Earth, NASA has announced the discovery of Kepler-186f, a rocky exoplanet located approximately 500 light-years from our planet. This celestial body orbits within the habitable zone of its star, making it a prime candidate for potentially harboring liquid water—a crucial ingredient for life as we know it.
