For centuries, it was assumed that our universe was static. In the late 1920s, astronomers defeated this assumption with a startling new discovery. From Earth, the light of distant galaxies appeared to be red, meaning that those galaxies were receding from us. This led to the revolutionary realization that the universe is expanding. The Red Limit is the tale of this discovery, its ramifications, and the passionately competitive astronomers who charted the past, present, and future of the cosmos.

Timothy Ferris was born on August 29, 1944, in Miami, Florida. He graduated from Northwestern University with a B.A. in 1966 and did graduate work from 1966-1967. Ferris is the author of Coming of Age in the Milky Way, for which he was awarded the American Institute of Physics Prize and nominated for a Pulitzer Prize; The Red Limit; The Whole Shebang: A State of the Universe(s) Report; Galaxies; The Mind's Sky; The Science of Liberty: Democracy, Reason, and the Laws of Nature, and other popular books on astronomy and physics. He has received the American Institute of Physics Prize, the American Association for the Advancement of Science Prize, the Klumpke-Roberts Prize, and a Guggenheim Fellowship. Books by Ferris have been nominated for the National Book Award and the Pulitzer Prize. His PBS special, The Creation of the Universe, won an Emmy nomination in 1986. In addition to his books, Ferris is a former editor of Rolling Stone magazine and has authored more than 100 articles, essays, and reviews in such publications as Esquire, Nature, The New Republic, The New York Times Book Review, and Reader's Digest. He is a regular contributor to The New Yorker, writes a column for Scientific American, has served as an essayist for The MacNeil-Lehrer News Hour, and is a commentator for National Public Radio's All Things Considered. Ferris produced the Voyager phonograph record, an artifact of human civilization containing music, the sounds of Earth, and encoded photographs, that was launched aboard the Voyager spacecraft. He serves as a consultant to NASA on long-term space exploration policy. A polymath scholar, Ferris has taught in five disciplines at four universities including City University of New York and University of Southern California. Professor Ferris lives with his wife and family in San Francisco and teaches at the University of California, Berkeley, in the departments of journalism and astronomy, where he is an emeritus professor.