Release Images

Release No.: 2020-01
For Release: Monday, January 13, 2020 - 5:15pm

NASA Planet Hunter Finds its 1st Earth-size Habitable-zone World

The three planets of the TOI 700 system, illustrated here, orbit a small, cool M dwarf star. TOI 700 d is the first Earth-size habitable-zone world discovered by TESS.

Credit: NASA's Goddard Space Flight Center

NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered its first Earth-size planet in its star's habitable zone, the range of distances where conditions may be just right to allow the presence of liquid water on the surface. Scientists confirmed the find, called TOI 700 d, using NASA's Spitzer Space Telescope and have modeled the planet's potential environments to help inform future observations. Watch video

Credit: NASA's Goddard Space Flight Center