Lin, Douglas N. C., The genesis of planets., Scientific American, May, 2008. Pg 50-59. (pdf)

Jonathan I. Lunine, Bruce Macintosh, and Stanton Peale, The detection and characterization of exoplanets, Physics Today, May 2009, pp. 46-51 (pdf)

Project Cyclops: A design study of a system for detecting extraterrestrial intelligent life, NASA, 1971 (pdf)

Initiation of clement surface conditions on the earliest Earth N. H. Sleep and P. S. Neuhoff, PNAS, vol. 98, 3666-3672, 2001. (pdf)

Plate Tectonics through Time Treatise on Geophysics, N. H. Sleep, vol. 9, 145-169, 2007. (pdf)

EVOLUTION OF THE CONTINENTAL LITHOSPHERE, Norman H. Sleep, Annu. Rev. Earth Planet. Sci. 2005, 33:369-93. (pdf)

Did Earthquakes Keep the Early Crust Habitable? Norman H. Sleep and Mark D. Zoback, Astrobiology, vol. 7, 2007. (pdf)

H2-rich fluids from serpentinization: Geochemical and biotic implications, PNAS, 2004. (pdf)

Niches of the pre-photosynthetic biosphere and geologic preservation of Earth's earliest ecology, Norman H. Sleep and Dennis K. Bird, (pdf)

Evolutionary ecology during the rise of dioxygen in the Earth's atmosphere, Norman H. Sleep and Dennis K. Bird Philosophical Trans. B., 2008. (pdf)

An Energy Balance Concept for Habitability Tori M. Hoehler, ASTROBIOLOGY, Volume 7, Number 6, 2007 DOI: 10.1089/ast.2006.0095 (pdf)

Possible presence of high-pressure ice in cold subducting slabs, Craig R. Bina & Alexandra Navrotsky, Nature, 408, 844-845, 2000 (pdf)