Sister of Earth: planet Kepler-186 f

Kepler-186 f is the first exoplanet with a radius close to Earth’s (about 7200 km) discovered in the habitable zone of its parent star.

So far no one knows if Kepler-186 f is inhabited.
Yeah, Venus and Mars are also in the habitable zone of the solar system, but no one has found any traces of life there yet.