Charles Liu is a professor of astrophysics at the City University of New York’s College of Staten Island and an associate with the Hayden Planetarium and Department of Astrophysics at the American Museum of Natural History in New York. His research focuses on colliding galaxies, quasars, and the star formation history of the Universe. He earned degrees from Harvard University and the University of Arizona, and held postdoctoral positions at Kitt Peak National Observatory and at Columbia University.
Together with co-authors Robert Irion and Neil Tyson, he received the 2001 American Institute of Physics Science Writing Award for his book One Universe: At Home In The Cosmos. More recently, he is the author of The Handy Astronomy Answer Book (2008, Visible Ink Press). He and his wife, who is way smarter than he is, have three children.