Scientists Detected New Alien Signals From Outer Space. The observable universe is approximately 92 billion light-years across, and it keeps growing faster and faster beyond human comprehension. Given that the universe is estimated to be 13.82 billion years old based on various measurements ...

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 ...

Look up at the night sky and, if you're away from city lights, you'll see stars. The space between those bright points of light is, of course, filled with inky blackness. Some astronomers have wondered about that all that dark space — about how dark it really is. "Is space truly black?" says ...

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 ...