(Phys.org)—NASA’s prolonged Kepler exoplanet-hunting mission, known as K2, has revealed the presence of another “super-Earth” alien world. The newly found planet, designated EPIC 246393474 b (or C12_3474 b), is more than five times more massive than the Earth and orbits its parent star in less than seven hours. The discovery is reported November 6 in a paper published on the arXiv pre-print repository.