Kepler-438 is a red dwarf in the constellation Lyra, about 590 light years from Earth. It is notable for its planetary system, which includes Kepler-438b, a possibly Earth-size planet within Kepler-438's habitable zone.
The system has one confirmed planet however transit timing observations of Kepler-438b indicate the possible presence of additional planets.
NASA's Kepler Marks 1,000th Exoplanet Discovery, Uncovers More Small Worlds in Habitable Zones