“The Earth has been lawned with life for something over 3.5 billion years. That's a span of time great enough to encompass some honest-to-goodness catastrophe. For example, 700 million years ago, Earth underwent a planet-wide deep freeze, with ice covering the oceans from the poles to the equator.”

A SETI astronomer and senior astronomer at the SETI Institute, Shostak explores the search for extraterrestrial intelligence with both scientific rigor and accessible clarity. His work bridges the gap between cutting-edge research and public understanding, offering perspectives on the cosmos, human curiosity, and the future of life beyond Earth.