Discovery Alert: Earth-sized Planet Has a 'Lava Hemisphere'

In a system with two known planets, astronomers saw a small object cross the Sun-sized star. It was another world: extra hot and Earth-sized.

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, Exoplanet Survey Satellite , Transiting Exoplanet Survey Satellite , Exoplanet Discoveries , Exoplanets , Terrestrial Planets , Tess ,