Resumen de Good call
Vakoch talks about the risk of sending messages to nearby world. For the first time humans have tried to directly signal their existence to an Earth-like exoplanet that might just be populated with aliens. GJ 273b orbits Luyten's star 12.4 light years away, and is the closest potentially habitable planet visible from the radio dish in Norway that sent the message. METI, the research organization he heads, is dedicated to messaging extraterrestrial intelligence, and contributed a mathematical and scientific tutorial to the signal, sent with samples of music from Spain's Sonar festival, which initiated the project
