Two years ago the ESO team also found that Gliese 581’s planet “D,” which orbits its star in the “habitable zone,” could have water on the surface of the planet. “[Planet] D could even ...

The planet orbits its star, Gliese 12, every 12.8 days at a distance of just 7% of the Earth-Sun distance. As a result, it receives approximately 60% more energy from its star compared to what ...