Victor Stenger, respected astrophysicist and current adjunct professor of philosophy at Colorado University, is a noted atheist. He has been widely regarded as an outspoken activist of science, skepticism, atheism, philosophical naturalism, and has commented against pseudoscience such as creationism and intelligent design.
Stenger has published seven individual books listed below in order of publication:
Not by Design: The Origin of the Universe; 1988
Physics and Psychics: The Search for a World Beyond the Senses; 1990
The Unconscious Quantum: Metaphysics in Modern Physics and Cosmology; 1995
Timeless Reality: Symmetry, Simplicity, and Multiple Universes; 2000
Has Science Found God? The Latest Results in the Search for Purpose in the Universe; 2003
The Comprehensible Cosmos: Where Do the Laws of Physics Come from?; 2003
God: The Failed Hypothesis. How Science Shows that God Does Not Exist; 2007
Aside from books, Stenger has also written numerous articles discussing similar topics, which have been published in scientific journals as well as skeptical publications. Recently, Stenger has focused on the "fine-tuned" universe argument, arguing that cosmological constants theologians claim to be fine-tuned can really be explained through science, without having to invoke a multiverse theory or the anthropic principle.
The chapter "Cosmic Evidence" from God: The Failed Hypothesis has been published in Christopher Hitchen's The Portable Atheist.
Stenger is known to be an eloquent public speaker, and has been scheduled to speak at the Origins Conference hosted by the Skeptic Society at the California Institute of Technology.
Stenger has repeatedly been an active proponent of atheism and skepticsm, as well as philosophical naturalism. This is most widely noted in his 2007 publication God: The Failed Hypothesis. He has also given lectures on the topic, arguing that the universe was in no way designed.