KEPLER-186f

Credits: NASA

Astronomers on their searching for Earth like planets have discovered a twin Earth-sized exoplanet caller Kepler-186f. Its radius is 11% larger than Earth and the planet orbits a star habitable zone, 492 light-years from our planet.

The distance does not ensure if its atmospheric characteristics make it a potential habitable planet or not. That will have to be postponent until the next instruments and spacecraft generation can focuses on outer space exoplanets.

Kepler - 186f is part of a solar system with five planets, hosting a star which has only 4% of our Sun's luminosity. Their proximity to the star makes all the planets too hot for living as we understand it, with slower rotations and longer days that could last for weeks or months.