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About

Barbara Cavalazzi is a distinguished astrobiologist and geobiologist whose research sits at the compelling intersection of early Earth life and planetary science. Her work focuses on the detection and characterization of biosignatures in ancient geological records, with particular emphasis on understanding the conditions that may have supported life on early Earth and potentially Mars. Cavalazzi's most influential contribution examines volcaniclastic environments as habitats for early life, drawing on approximately 3.5-billion-year-old Pilbara rocks in Australia to reconstruct the conditions under which microbial life may have flourished — work that has garnered 83 citations and remains a touchstone reference for researchers studying life's origins. This deep-time perspective has naturally extended into planetary science, where she has contributed to the scientific framework underpinning Mars Sample Return, one of the most ambitious space missions ever conceived. Her involvement in defining the rationale for MSR's science program and advocating for the return of Martian airfall dust demonstrates her recognition as a leading voice in the astrobiology community. Through her dual expertise in Precambrian biosignatures and Mars exploration strategy, Cavalazzi bridges Earth's ancient past with humanity's search for life beyond our planet, making her work foundational for the next generation of astrobiologists.