From Arecibo to METI: The Ethics and Global Debate Over Interstellar Messaging
To the point
In 1974, Arecibo sent a 1679-bit message to M13 to show who we are and where we sit in the cosmos, launching METI and a global debate about broadcasting to unknown civilizations, with input from Carl Sagan and Jocelyn Bell Burnell and concerns voiced by Stephen Hawking and David Brin, linked to earlier radio efforts and ongoing, safety-minded messaging initiatives.
