What mechanisms govern microbial evolution and dispersal in the deep biosphere?
What ecological rules explain deep microbial community structure?
How does deep life respond to physical and chemical extremes?
What can genomes tell us about the limits and possible origins of life?
How does life shape carbon transformations in the subsurface and what governs the rates of these reactions?
How does life influence transitions between abiotic and biotic realms?
How does deep life and its influence on the carbon cycle interact with the surface world?
CoDL (Census of Deep Life)
Image credits. Census of Deep Life: A transmission electron microscopy image of T. ammonificans by Costantino Vetriani; Deep Biosphere: Drill cores from the Louisville Seamounts, Southwest Pacific Ocean by Jason Sylvan; Astrobiology: An illustration of the hydrothermal vents inferred to occur on Enceladus, NASA/JPL-Caltech/Southwest Research Institute