NASA's Transiting Exoplanet Survey Satellite (TESS), shown here in a conceptual illustration, will identify exoplanets orbiting ...


A team of astronomers led by MIT has confirmed that NASA's unmanned Transiting Exoplanet Survey Satellite (TESS) space telescope has discovered its first Earth-sized exoplanet, called HD 21749c. The smallest planet outside our solar system yet found by TESS, it orbits the orange main-sequence star HD 21749, which is 52 light years away from Earth in the constellation of Reticulum and is home to a sub-Neptune-seized world, HAD21749b.

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Continue Reading TESS identifies its first Earth-sized exoplanet



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