Macy Huston and Jason Wright—The Conversation / Fast Company
The search for alien life hinges on signs of extraterrestrial technology – Radio waves are the most common technosignatures featured in sci-fi movies and books. But they are not the only signals that could be out there. If an alien were to look at Earth, many human technologiesfrom cell towers to fluorescent light bulbscould be a beacon signifying the presence of life. …