The exoplanet HD 20794d swoops in and out of its habitable zone every few hundred days, making for an extreme climate.

This “super-Earth,” dubbed HD 20794 d, boasts a mass six times that of our planet and resides within the star’s “habitable zone.” The zone represents the optimal distance from a star ...

A newly confirmed exoplanet around a nearby sunlike star might be astronomers’ best chance yet to look for life beyond the ...

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Earth' exoplanet, HD 20794 d, was published in the scientific journal Astronomy & Astrophysics. Located approximately 19.7 light-years away from Earth in the Eridanus constellation, the exoplanet is ...