Attention human. You are receiving an interstellar radio transmission. And it could be coming from one of the nearest ...

The curious minds at What If land on Proxima Centauri b and explore its alien environment, revealing climate, terrain, and habitability. Study of 27.8M Americans may have revealed direct Alzheimer's ...

Add Yahoo as a preferred source to see more of our stories on Google. Distance, light speed, biology, and time may explain why alien civilizations never meet. (CREDIT: Wikimedia / CC BY-SA 4.0) “There ...

Laser sail propulsion is an idea that won't go away. By aiming powerful Earth-based lasers at tiny spacecraft with light sails, tiny spacecraft can be accelerated to near-relativistic speeds without ...