Dubbed Kepler 438 b and Kepler 442 b, both planets appear to be rocky and orbit in the not - too - hot, not - too - cold habitable zones of their stars where liquid water can exist in abundance. (scientificamerican.com)
NOTE: This animation attempts to relate the orbits and possible habitable zones of Stars A and B in the Alpha Centauri AB system to their common center of mass. (solstation.com)
He is also part of a NASA team that will soon be using the Transiting Exoplanet Survey Satellite (TESS) to find Earth - like planets orbiting in or near the habitable zone of their stars. (sciencedaily.com)