Mauri Valtonen

Mauri Valtonen is a Finnish astronomer and professor at the University of Turku. His fields of scientific interest include active galaxies, cosmology, and the three-body problem.
Valtonen completed a Ph.D. from Cambridge University in 1975. He served as Director of Tuorla Observatory from 1980 to 2002 and returned to this position again in 2007.
In 2008, Valtonen led a research team which argued that delay in the periodic outbursts from the nucleus of the active galaxy OJ 287 confirmed Einstein's general theory of relativity
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• Valtonen, M. & Karttunen, H. (2006). The Three-Body Problem. 251 pages. Cambridge University Press.
• Byrd, G. G., Chernin A. D. & Valtonen M. (2007). Cosmology: Foundations and Frontiers. Moscow: URSS.