Astronomers using data from NASA’s Kepler K2 mission have discovered two new planetary systems, one of which contains two super-Earths and the other has three Earth-size exoplanets. An artist’s concept of the K2-239 planetary system. Image credit: Gabriel Perez Diaz, SMM / IAC. The first planetary system was found around K2-239, also knows as EPIC 248545986, a spectral type M3V star located 160 light-years away in the constellation Sextans. The...
