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 ...

A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

For millennia, humans have asked whether we are alone in the universe, yet the discovery of aliens still eludes us. But if ...