Interstellar Messaging: History, Methods, and the Ethics of Cosmic Contact
To the point
Humans seek to detect and contact intelligent extraterrestrials by listening and sending messages, combining science, engineering, and ethics from Frank Drake’s Project Ozma to modern SETI and Breakthrough Listen, using radio and future laser or quantum methods while considering biosignatures, technosignatures, and the ethics of METI to turn space’s silence into dialogue.