Before Kepler 452b grabbed our attention with its near-Earth size orbit in the Goldilocks (liquid water) zone of a G2 sun like ours, the M dwarf stars were studied as possible candidates for other Earth twins, planets that might harbor life. The M dwarfs are ten times more numerous that G2 stars in the universe. In order to maintain liquid water, their planets would need to orbit a bit closer than we do to the sun. The M dwarfs’ planets should provide a fast wobble, orbiting in weeks or months. Planets in the Goldilocks zone should block out plenty of light as they pass by. They should be easy to find with NASA’s Transiting Exoplanet Survey Satellite, when it goes active in 2017.