NASA's TESS probe discovers an exoplanet about three times the size of the Earth
The exoplanet orbits a dwarf star located 53 light-years away in the Reticulum constellation
NASA's planet hunting probe TESS has discovered a third exoplanet outside our Solar System. Dubbed HD 21749b, it is described as a "sub-Neptune" exoplanet but is about three times the size of the Earth....
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