Fr. Michał Heller (b. 1936) is a philosopher, theologian, professor in the Philosophy Department at the Pontifical Academy of Theology (PAT) in Cracow (Poland), doctor honoris causa of the Academy of Mining and Metallurgy in Cracow, ordinary member of the Pontifical Academy of Sciences and the Petersburg Academy of Sciences, and also an associate member of the Vatican Astronomical Observatory. He has written about the following philosophical problems: physics of relativity, the philosophy of science, and the relationship between science and theology. His publications include The Evolution of the Cosmos and Cosmology (1983, 1985), The Theoretical Foundations of Cosmology (1988), The Physics of Movement and Space-time (1993), Time and Causality (2002).  He is also the author of many popular introductions to the issues of the philosophy of nature, among them, Toward the Universe (1970), The Cosmic Adventure of the Wise Man (1994), Joy in Banach's Spaces (1995), To Capture Becoming (1996).