Across the observable universe, galaxies advertise themselves in radio waves for familiar reasons-magnetic fields, cosmic ...

Imagine for just a moment that there is some other civilization out there in the universe, looking out at us radiantly, as we are. What would they perceive? All of our bustling metropolises glow from ...

The source of a supposed alien broadcast that made researchers go "Wow!" may instead have been the result of a remarkably rare cosmic event, a new study suggests. When you purchase through links on ...