TESS Finds First Earth-Size Planet in the Habitable Zone | NASA

TESS Finds First Earth-Size Planet in the Habitable Zone | NASA

TESS Finds First 

Earth-Size Planet in 

the Habitable Zone

In a galaxy 100 light-years away in the constellation Dorado sits a planetary system named TOI 700. It is home to TOI 700 d, the first Earth-size habitable-zone planet discovered by TESS, NASA's Transiting Exoplanet Survey Satellite.

Image Credit: NASA/Goddard Space Flight Center

Last Updated: Jan. 7, 2020

Editor: Yvette Smith