Are we alone in space? Are there other civilizations on other planets? The Milky Way, home to our Solar System, counts numerous planets and stars. Can there be life there? We've gathered a list of possible civilizations that may hide in our galaxy. Let's head on a journey in space to find 36 ...

Is there an alien civilization next door? It’s quite possible. Proxima Centauri b is in the habitable zone and is pretty similar in mass to the Earth. NASA's telescope might have detected proof of artificial lights coming from that planet. What is it? An alien city or maybe lights from their ...