Up to 79% of planets in the ‘habitable zone’ may not be good for life

Many planets which have the fitting temperatures for liquid water on their surfaces was once too sizzling or too chilly, which can have an effect on their potential to host life now

By Leah Crane

A big proportion of planets within the so-called liveable zone – the world in orbit round a star the place situations are proper for liquid water on a world’s floor, and thus probably for all times – weren’t at all times there. That may imply that we’re vastly overestimating the variety of worlds that would host life.

While researchers usually consider the liveable zone of any given star as being comparatively static, it really adjustments because the star evolves and its brightness and temperature adjustments. That …