The exoplanet, Kepler-725c, has 10 times the mass of Earth and is located in the habitable zone of the sun-like star Kepler-725. The discovery is published in Nature Astronomy.

NASA defined "super-Earth" as "unlike anything in our solar system, these are 2 to 10 times the mass of Earth, but smaller than Neptune, and can be made of gas, rock or a combination of both." ...