Universal Rules for Complex Life: From Earth to Exoplanets and Technosignatures

To the point

Astrobiology seeks universal rules for how complex systems and life could arise beyond Earth, using Earth as a reference but noting microbes are likely the most common and signs of more advanced life on exoplanets are explored, with spectroscopy hunting biosignatures like oxygen, a working life definition as self-sustaining chemistry capable of Darwinian evolution, and ideas that evolution and increasing complexity could occur in diverse systems, while Willam Bains and Sara Seager study thousands of potential biosignatures, alternative solvents, mineral diversity and clues like apatite, plus technosignatures for intelligent civilizations, all within an uncertain, non-linear search.