哈勃太空望远镜拍摄的一个位于金牛座的三体星系。英国皇家天文学会 / ESA / G. Duchene / Gladys Kober
参考
A formula for life? New model calculates chances of intelligent beings in our Universe and beyond
https://ras.ac.uk/news-and-press/research-highlights/formula-life-new-model-calculates-chances-intelligent-beings-our