The Search for Extraterrestrial Life: From Project Ozma to SETI and the Implications of Discovery
To the point
Humans are actively searching for life beyond Earth, including intelligent civilizations, guided by questions about how common life is and how likely civilizations are to arise, using methods such as listening for radio signals, laser transmissions, or sending artifacts, in a long-running, collaborative effort from Project Ozma to SETI and SETI@home, which would transform our understanding of life and our place in the cosmos whether we find life or not, with thinkers like Carl Sagan, Lynn Margulis, and Dorion Sagan shaping the broader perspective.
