Science, Space

Earth and others lose status as Goldilocks worlds

Bad news for Kepler-22b. Once deemed the most habitable world outside our solar system, it no longer looks life-friendly. More strangely, Earth's habitability rating has also taken a hit. Both results are thanks to a redefinition of the habitable zone – the region around a star in which liquid water can theoretically exist. Also known… Continue reading Earth and others lose status as Goldilocks worlds