MAJOR RESEARCH FOCUS:
  • The impact of early Earth microorganisms:
    - methanogens, sulfate-reducers, cyanobacteria, S-reducers, fermenters, sulfide-oxidizers, and eukaryotes
  • The roles of photochemical reactions, especially of S species in the atmosphere and of S and Fe species in waters
  • Detection of biosignatures on other planets

    • Specific Research Projects for the next five-year period:

  • Geochemical Records of the Earth's Biosphere
  • Photochemical Reactions of Sulfur and Iron in the Early Earth
  • The Genomic Record of Earth's Early Biosphere
  • Laboratory Microbial Simulations: Astrobiological Signatures
  • Modern Analogue of Precambrian Microbial Ecosystem
  • Planetary Habitability and Life Detection