The new Netflix series 3 Body Problem, based on Cixin Liu’s epic science-fiction trilogy, reignites an old debate among researchers concerned with the possibility of extraterrestrial communication. In the fictional account (spoiler ahead!), the trouble starts when one of the characters beams a powerful radio signal out into space. Is that realistic? And is it likely aliens could receive and decode the messages we send? The answer to the first question is a clear yes. In fact, more than 25... Read this story
