The illustration shows the habitable zone for different types of stars. The distance to the habitable zone is dependent on how big and bright the star is. The green area is the habitable zone ...

The second critical stage is orbital migration. Once the star becomes a white dwarf, an ocean world at Saturn's orbit would be an ice planet far beyond the habitable zone. To become a living world ...

Because most planets derive their heat from their host star, that temperature range corresponds to a certain orbital distance known as the habitable zone. Because it is “just right” for life ...

Often, "Earth-like" worlds — Earth-like in the sense that they have a similar mass to our planet and reside in their star's habitable zone — are found by chance, often in huge surveys that ...