Despite billions of years of ecosystem turnover, evolutionary innovation, organismic complexification, and geological events, the organic carbon that is a residuum of the global marine biosphere in the rock record tells an essentially static story.
Astrobiology
Astrobiology 101: Life, the Universe, and How We Search for Our Cosmic Neighbours
Look up at the night sky and it is difficult not to wonder: are we alone? Astrobiology turns that ancient
Astrobiology Society
June 7, 2026
