NASA's now retired Kepler Space Telescope is the mission that keeps on giving. On Wednesday, NASA announced the discovery of what might be a very Earth-like exoplanet found lurking in old Kepler data.
Kepler ran out of fuel and went to sleep in 2018, but scientists are still combing through the observations it made during its epic hunt for planets beyond our own solar system.
Kepler-1649c is located 300 light-years from Earth. NASA described it as the "most similar to Earth in size and estimated temperature" out of the thousands of exoplanets discovered by Kepler. The planet is located in its star's habitable zone, a region where it's possible for liquid water to exist.