Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.
Invitrogen Webinar

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 15 June 2001:
Vol. 292. no. 5524, pp. 2026 - 2027
DOI: 10.1126/science.1060081
Prev | Table of Contents | Next

Perspectives

Also see the archival list of Science's Compass: Enhanced Perspectives

PLANETARY SCIENCE:
Enhanced: Life Without Photosynthesis

Christopher F. Chyba and Kevin P. Hand

Recent planetary exploration has provided evidence for large subsurface oceans on several jovian moons. In their Perspective, Chyba and Hand assess the chances for life in these oceans, which are deprived of sunlight. Photosynthesis is therefore ruled out, but other sources may provide molecular oxygen in sufficiently high concentration to serve as an energy source for life.

C. F. Chyba is at the Center for the Study of Life in the Universe, SETI Institute, Mountain View, CA 94404, USA; the Center for International Security and Cooperation (CISAC), Stanford University, Stanford, CA 94305, USA; and in the Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305, USA; e-mail: chyba{at}seti.org.. K. P. Hand is in CISAC and the Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, USA.

Read the Full Text


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Anaerobic Oxidation of Arsenite in Mono Lake Water and by a Facultative, Arsenite-Oxidizing Chemoautotroph, Strain MLHE-1.
R. S. Oremland, S. E. Hoeft, J. M. Santini, N. Bano, R. A. Hollibaugh, and J. T. Hollibaugh (2002)
Appl. Envir. Microbiol. 68, 4795-4802
   Abstract »    Full Text »    PDF »
Antarctic Sea Ice--a Habitat for Extremophiles.
D. N. Thomas and G. S. Dieckmann (2002)
Science 295, 641-644
   Abstract »    Full Text »    PDF »


ADVERTISEMENT
Click Me!

ADVERTISEMENT
Click Me!

To Advertise     Find Products