Up to 74% of planets in the ‘habitable zone’ may not be good for life

Many planets with suitable temperatures for liquid water to exist on their surface were previously either too hot or too cold.

To Leah Crane

The majority of planets in the so-called habitable zone (regions in orbit around stars where conditions are favorable for life to exist and liquid water exists on the surface of the world) are believed to be there all the time. was not limited. This could mean that we are greatly overestimating the number of worlds that can harbor life.

Researchers often think of a given star’s habitable zone as being relatively static, but in reality it changes as the star evolves, changing its brightness and temperature…