Earth 2.0? Maybe Not. Intelligent Life Might Be Far Rarer Than We Think

Podcast: SETI Live · SETI Institute

Opublikowano: 2025-12-23

Get ready for a fascinating deep dive into one of the biggest questions in astrobiology: How common are biological extraterrestrial intelligences in the Milky Way? Host Simon Steel, Deputy Director of the Carl Sagan Center for Research, is joined by Manuel Scherf and Helmut Lammer (Space Research Institute, Austrian Academy of Sciences) to explore new research that challenges long-held assumptions about "Earth-like" planets and what it really takes for a world to support complex life. Recent work from Scherf, Lammer, and colleagues revisits the idea of Eta-Earth — the number of truly Earth-like habitats in the Galaxy. Their models extend fa...