Andrew Steen

Andrew Steen serves as an Associate Professor of Biological Sciences and Earth Sciences, specializing in microbial survival mechanisms within Earth's most energy-limited environments including deep marine sediments and permafrost soils.

His research portfolio encompasses:

• Geomicrobiology of ancient microbial communities
• Biogeochemical cycling in extreme environments
• Metabolic stasis in near-dormant microbes
• Computational approaches to unculturable organisms

The Steen Lab pioneers integrative methodologies combining bioinformatics, kinetic rate measurements, organic carbon analysis, and machine learning to decode microbial lifestyles that defy laboratory cultivation. This research illuminates how millennia-old microbial communities interact with planetary geochemical processes, revealing fundamental principles about life's persistence at energy limits.

His work bridges earth sciences and biological sciences through advanced computational frameworks, providing critical insights into subsurface biosphere dynamics with implications for astrobiology and climate science.