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

Astronomers have discovered an exoplanet that might have favorable conditions for liquid water. This planet, HD 20794 d, ...

The discovery of a potentially habitable 'super-Earth' exoplanet, HD 20794 d, was published in the scientific journal ...

We are talking about HD 20794 d – a planet belonging to the group of so-called super-Earths. It is located in a star system ...