A team of astronomers in Japan has conducted the first ground-based transit observation of K2-3d, a super-Earth within the habitable zone around a bright M-dwarf star, using the multi-band imager MuSCAT on the Okayama Astrophysical Observatory 1.88-m telescope. This artist’s impression shows a super-Earth orbiting a red dwarf star. Image credit: NASA. A transit is a phenomenon in which a planet passes in front of its host star, blocking a small...
