Michael H. Hart (born April 28, 1932 in New York City) is an astrophysicist who has also written three books on history and controversial articles on a variety of subjects.
Hart, a graduate of the Bronx High School of Science who enlisted in the U.S. Army during the Korean war, received his undergraduate degree at Cornell in mathematics and later earned a PhD in astrophysics at Princeton University. He also holds graduates degrees in physics, astronomy, and computer science, as well as a law degree. He was a research scientist at NASA before leaving to be a professor of physics at Trinity University in San Antonio, Texas. He has also taught both astronomy and history of science at Anne Arundel Community College in Arnold, Maryland. His published work in peer-reviewed scientific journals includes several detailed computer simulations of atmospheric evolution.
His first book was The 100: A Ranking of the Most Influential Persons in History, which has sold more than 500,000 copies and been translated into 15 f