Philip A. Stahl is an emeritus member of the American Astronomical Society, with a specialty in solar physics. He has written three previous books on atheism, as well as books on s...lihat lebih banyakPhilip A. Stahl is an emeritus member of the American Astronomical Society, with a specialty in solar physics. He has written three previous books on atheism, as well as books on solar physics and astrophysics. His hobbies include computer chess, GO, mathematical modeling, hiking, and reading and writing science fiction.lihat lebih sedikit