Infographic: Planet Kepler-186f, trailblazer
![Infographic: Planet Kepler-186f, trailblazer](https://science.nasa.gov/wp-content/uploads/2023/09/5_planet_profile_kepler_186f.jpg?w=4096&format=jpeg)
October 19, 2015
Credit | NASA/JPL-Caltech |
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Kepler-186f was the first validated Earth-size planet to orbit a distant star in the habitable zone– a range of distance from a star where liquid water might pool on the planet's surface. Its discovery confirmed that Earth-size planets exist in the habitable zones of other stars.