Unfortunately, most of the research so far has indicated that the likelihood of habitability are not good. Just to name a few, they have to be the right distance from a star, they have to be big enough to have a molten center, and the planet needs to have rock. Between Proxima Centauri's variability and the planet being tidally-locked with its star, life would have a hard time surviving there. The roughly Earth-sized planet, Kepler-186f, orbits a star from a distance scientists call the "habitable zone" — the range at which it could have liquid water. Since then, multiple studies have been conducted to determine if this planet could actually support life. In August of 2016, astronomers from the European Southern Observatory (ESO) confirmed the existence of an Earth-like planet around Proxima Centauri – the closest star to our solar system. Ross 128 b: Nearby earth-like planet could support alien life. A huge 'super earth' detected this week is the closest 'habitable' planet to Earth ever found - 42 light years away from our planet. Ross 128 b is the second-closest planet to be detected outside the solar system with … Thanks to a wobble in its host star, researchers from UNSW have spotted a planet only 16 light-years away that could harbor life (shown in an artist's conception, above). The potentially habitable planet TOI 700 d is only 100 light years away. Of these, Kepler-186f is closest in size to Earth, with 1.2 times Earth's radius, and it is located towards the outer edge of the habitable zone around its red dwarf host star. Ross 128 b is a newly discovered exoplanet, the second-closest found to our solar system, only 11 light-years away. The planet is seven times the mass of Earth, which could make it a very large rocky planet or a dwarf gas giant. 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