NASA’s Transiting Exoplanet Survey Satellite (TESS) has been used to discover an Earth-sized planet in it's parent star's, called TOI 700, habitable zone. See the orbits of the planets known to be in the system in this animation. -- An Earth-size planet in the habitable zone? New NASA discovery is one special world: https://www.space.com/nasa-tess-exoplanet-habitable-zone-discovery-milestone.html

Credit: NASA Goddard Space Flight Center