A proposal for spotting extraterrestrials resurrects an old idea linking light and life, says Philip Ball.
Enjoying our latest content?
Log in or create an account to continue
- Access the most recent journalism from Nature's award-winning team
- Explore the latest features & opinion covering groundbreaking research
or
References
Sparks, W. B. et al. Proc. Natl Acad. Sci. USA doi: 10.1073/pnas.0810215106 (2009).
Lovelock, J. E. Nature 207, 568-570 (1965).
Dietrich, W. E. & Perron, J. T. Nature 439, 411-418 (2006).
Popa, R. Between Necessity and Probability: Searching for the Definition and Origin of Life (Springer, Berlin, 2004).
Levitt, T. The Shadow of Enlightenment (Oxford Univ. Press, New York, 2009).
Related links
Rights and permissions
About this article
Cite this article
Ball, P. A circular argument?. Nature (2009). https://doi.org/10.1038/news.2009.390
Published:
DOI: https://doi.org/10.1038/news.2009.390
