- Astrobiology: An entry from Thomson Gale's <i>Gale Encyclopedia of Science, 3rd ed.</i> by Agnieszka Lichanska, 2004
- The needless search for extraterrestrial fossils on Earth [An article from: Earth Science Reviews] by A.J. van Loon, 2005-01-01
- GROWING FOOD ON THE FINAL FRONTIER.(production of food crops in space)(Brief Article): An article from: Techniques by Cutshall Sandy, 2001-09-01
- EXTRATERRESTRIAL MICROBIOLOGY: An entry from Gale's <i>World of Microbiology and Immunology</i>
- On the search for extrasolar planets.: An article from: Daedalus by Alan P. Boss, 2004-06-22
- SAGAN, CARL (1934-1996): An entry from Gale's <i>World of Earth Science</i>
- Astrobiology: Water and the Potential for Extraterrestrial Life: An entry from Macmillan Reference USA's <i>Water: Science and Issues</i> by Jack D. Farmer, 2003
- Astrobiology: An entry from Macmillan Reference USA's <i>Macmillan Reference USA Science Library: Space Sciences</i> by Jack D. Farmer, 2002
- Mars: An entry from Thomson Gale's <i>Gale Encyclopedia of Science, 3rd ed.</i> by Jeffrey C. Hall, David T., Jr. King, 2004
- Life Everywhere by David Darling, 2002-05-02
- Thawing Eden by Paul David Binkley, 2010-02-19
- Life in Space: Astrobiology for Everyone by Dr. Lucas John Mix, 2009-03-31
- Astrobiology: A Multi-Disciplinary Approach by Jonathan Lunine, 2004-08-23
- Faint Echoes, Distant Stars: The Science and Politics of Finding Life Beyond Earth by Ben Bova, 2004-02-17
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