This illustration shows TOI 700, a planetary system 100 light-years away in the constellation Dorado.

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

For more information on TESS, visit:

https://www.nasa.gov/tess-transiting-exoplanet-survey-satellite and https://tess.mit.edu/

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